@shixinde/vuepress-theme-init
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<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><h2 id="_1-时间戳转化为yyyy-mm-dd-hh-mm-ss" tabindex="-1"><a class="header-anchor" href="#_1-时间戳转化为yyyy-mm-dd-hh-mm-ss"><span>1. 时间戳转化为YYYY-MM-DD hh:mm:ss</span></a></h2><blockquote><p>这个是获取时间戳的函数</p></blockquote><div class="language-text line-numbers-mode" data-highlighter="prismjs" data-ext="text" data-title="text"><pre class="language-text"><code><span class="line">第一种</span>
<span class="line">var timestamp = Date.parse(new Date());</span>
<span class="line">输出：1640569738000</span>
<span class="line">第二种</span>
<span class="line">var timestamp=new Date().getTime()；</span>
<span class="line">输出：1640569787716</span>
<span class="line">第三种</span>
<span class="line">var timestamp = (new Date()).valueOf() </span>
<span class="line">输出：1640569936666</span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><blockquote><p>这个是时间戳转换为时间 [ **YYYY-MM-DD hh:mm:ss **]的函数</p></blockquote><div class="language-javascript line-numbers-mode" data-highlighter="prismjs" data-ext="js" data-title="js"><pre class="language-javascript"><code><span class="line"><span class="token keyword">function</span> <span class="token function">timestampToTime</span><span class="token punctuation">(</span><span class="token parameter">timestamp</span><span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">var</span> date <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Date</span><span class="token punctuation">(</span>timestamp <span class="token operator">*</span> <span class="token number">1000</span><span class="token punctuation">)</span><span class="token punctuation">;</span><span class="token comment">//时间戳为10位需*1000，时间戳为13位的话不需乘1000</span></span>
<span class="line"> <span class="token keyword">var</span> <span class="token constant">Y</span> <span class="token operator">=</span> date<span class="token punctuation">.</span><span class="token function">getFullYear</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token string">'-'</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token keyword">var</span> <span class="token constant">M</span> <span class="token operator">=</span> <span class="token punctuation">(</span>date<span class="token punctuation">.</span><span class="token function">getMonth</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">+</span><span class="token number">1</span> <span class="token operator"><</span> <span class="token number">10</span> <span class="token operator">?</span> <span class="token string">'0'</span><span class="token operator">+</span><span class="token punctuation">(</span>date<span class="token punctuation">.</span><span class="token function">getMonth</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">+</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token operator">:</span>date<span class="token punctuation">.</span><span class="token function">getMonth</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">+</span><span class="token number">1</span><span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token string">'-'</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token keyword">var</span> <span class="token constant">D</span> <span class="token operator">=</span> <span class="token punctuation">(</span>date<span class="token punctuation">.</span><span class="token function">getDate</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator"><</span> <span class="token number">10</span> <span class="token operator">?</span> <span class="token string">'0'</span><span class="token operator">+</span>date<span class="token punctuation">.</span><span class="token function">getDate</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">:</span>date<span class="token punctuation">.</span><span class="token function">getDate</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token operator">+</span> <span class="token string">' '</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token keyword">var</span> h <span class="token operator">=</span> <span class="token punctuation">(</span>date<span class="token punctuation">.</span><span class="token function">getHours</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator"><</span> <span class="token number">10</span> <span class="token operator">?</span> <span class="token string">'0'</span><span class="token operator">+</span>date<span class="token punctuation">.</span><span class="token function">getHours</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">:</span>date<span class="token punctuation">.</span><span class="token function">getHours</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token operator">+</span> <span class="token string">':'</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token keyword">var</span> m <span class="token operator">=</span> <span class="token punctuation">(</span>date<span class="token punctuation">.</span><span class="token function">getMinutes</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator"><</span> <span class="token number">10</span> <span class="token operator">?</span> <span class="token string">'0'</span><span class="token operator">+</span>date<span class="token punctuation">.</span><span class="token function">getMinutes</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">:</span>date<span class="token punctuation">.</span><span class="token function">getMinutes</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token operator">+</span> <span class="token string">':'</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token keyword">var</span> s <span class="token operator">=</span> date<span class="token punctuation">.</span><span class="token function">getSeconds</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator"><</span> <span class="token number">10</span> <span class="token operator">?</span> <span class="token string">'0'</span><span class="token operator">+</span>date<span class="token punctuation">.</span><span class="token function">getSeconds</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">:</span>date<span class="token punctuation">.</span><span class="token function">getSeconds</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token keyword">return</span> <span class="token constant">Y</span><span class="token operator">+</span><span class="token constant">M</span><span class="token operator">+</span><span class="token constant">D</span><span class="token operator">+</span>h<span class="token operator">+</span>m<span class="token operator">+</span>s<span class="token punctuation">;</span></span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"> <span class="token function">timestampToTime</span><span class="token punctuation">(</span><span class="token number">1403058804</span><span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"> console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token function">timestampToTime</span><span class="token punctuation">(</span><span class="token number">1403058804</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span><span class="token comment">//2020-06-18 10:33:24</span></span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><blockquote><table><thead><tr><th>一小时的[时间戳](</th><th>3,600,000</th></tr></thead><tbody><tr><td>一天的时间戳</td><td>86400000</td></tr><tr><td>一个月的时间戳</td><td>2592000000</td></tr><tr><td>一年的时间戳</td><td>31104000000</td></tr></tbody></table></blockquote><h2 id="_2-生成六位随机整数" tabindex="-1"><a class="header-anchor" href="#_2-生成六位随机整数"><span>2. 生成六位随机整数</span></a></h2><div class="language-javascript line-numbers-mode" data-highlighter="prismjs" data-ext="js" data-title="js"><pre class="language-javascript"><code><span class="line">Math<span class="token punctuation">.</span><span class="token function">trunc</span> <span class="token punctuation">(</span>Math<span class="token punctuation">.</span><span class="token function">random</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">*</span><span class="token punctuation">(</span><span class="token number">999999</span><span class="token operator">-</span><span class="token number">100000</span><span class="token punctuation">)</span><span class="token operator">+</span><span class="token number">100000</span><span class="token punctuation">)</span></span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div></div></div><h2 id="_3-使用正则判断" tabindex="-1"><a class="header-anchor" href="#_3-使用正则判断"><span>3. 使用正则判断</span></a></h2><h4 id="手机号格式正不正确" tabindex="-1"><a class="header-anchor" href="#手机号格式正不正确"><span>手机号格式正不正确</span></a></h4><div class="language-javascript line-numbers-mode" data-highlighter="prismjs" data-ext="js" data-title="js"><pre class="language-javascript"><code><span class="line"><span class="token keyword">let</span> myreg <span class="token operator">=</span> <span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$</span><span class="token regex-delimiter">/</span></span><span class="token punctuation">;</span></span>
<span class="line"><span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token keyword">this</span><span class="token punctuation">.</span>fromData<span class="token punctuation">[</span>key<span class="token punctuation">]</span><span class="token punctuation">.</span>value <span class="token operator">&&</span> myreg<span class="token punctuation">.</span><span class="token function">test</span><span class="token punctuation">(</span><span class="token keyword">this</span><span class="token punctuation">.</span>fromData<span class="token punctuation">[</span>key<span class="token punctuation">]</span><span class="token punctuation">.</span>value<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token string">"正确的电话号码"</span><span class="token punctuation">)</span></span>
<span class="line"><span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span></span>
<span class="line"> uni<span class="token punctuation">.</span><span class="token function">showToast</span><span class="token punctuation">(</span><span class="token punctuation">{</span></span>
<span class="line"> <span class="token literal-property property">title</span><span class="token operator">:</span> <span class="token string">"请输入正确的号码"</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token literal-property property">icon</span><span class="token operator">:</span> <span class="token string">"none"</span></span>
<span class="line"> <span class="token punctuation">}</span><span class="token punctuation">)</span></span>
<span class="line"> <span class="token keyword">return</span></span>
<span class="line"><span class="token punctuation">}</span></span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="身份证号正不正确" tabindex="-1"><a class="header-anchor" href="#身份证号正不正确"><span>身份证号正不正确</span></a></h4><div class="language-javascript line-numbers-mode" data-highlighter="prismjs" data-ext="js" data-title="js"><pre class="language-javascript"><code><span class="line"><span class="token keyword">const</span> card <span class="token operator">=</span> <span class="token string">"512326199102115645"</span><span class="token punctuation">;</span></span>
<span class="line"><span class="token keyword">const</span> str1 <span class="token operator">=</span> card<span class="token punctuation">.</span><span class="token function">replace</span><span class="token punctuation">(</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">(\w{6})\w*(\w{4})</span><span class="token regex-delimiter">/</span></span><span class="token punctuation">,</span><span class="token string">'$1********$2'</span><span class="token punctuation">)</span><span class="token punctuation">;</span> </span>
<span class="line">console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span>str<span class="token punctuation">)</span> <span class="token comment">// 512326********5645</span></span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="_4-js去除数组对象中的重复对象" tabindex="-1"><a class="header-anchor" href="#_4-js去除数组对象中的重复对象"><span>4.js去除数组对象中的重复对象</span></a></h2><h4 id="_1、根据数组对象中的id作比较-id相同的去掉。这种方法只会保留-id-第一个出现的数组" tabindex="-1"><a class="header-anchor" href="#_1、根据数组对象中的id作比较-id相同的去掉。这种方法只会保留-id-第一个出现的数组"><span>1、根据数组对象中的id作比较，id相同的去掉。这种方法只会保留 id 第一个出现的数组</span></a></h4><p>第一种：</p><div class="language-javascript line-numbers-mode" data-highlighter="prismjs" data-ext="js" data-title="js"><pre class="language-javascript"><code><span class="line"> <span class="token keyword">var</span> arr <span class="token operator">=</span> <span class="token punctuation">[</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">id</span><span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'sli'</span><span class="token punctuation">,</span> <span class="token literal-property property">year</span><span class="token operator">:</span> <span class="token number">2012</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">id</span><span class="token operator">:</span> <span class="token number">2</span><span class="token punctuation">,</span> <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'ap'</span><span class="token punctuation">,</span> <span class="token literal-property property">year</span><span class="token operator">:</span> <span class="token number">2015</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">id</span><span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'alslion'</span><span class="token punctuation">,</span> <span class="token literal-property property">year</span><span class="token operator">:</span> <span class="token number">2012</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">id</span><span class="token operator">:</span> <span class="token number">3</span><span class="token punctuation">,</span> <span class="token literal-property property">name</span><span class="token operator">:</span> <span class="token string">'pose'</span><span class="token punctuation">,</span> <span class="token literal-property property">year</span><span class="token operator">:</span> <span class="token number">2012</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"><span class="token punctuation">]</span></span>
<span class="line"></span>
<span class="line"><span class="token comment">//删除arr中的重复对象</span></span>
<span class="line"><span class="token keyword">var</span> newArr<span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">;</span></span>
<span class="line"><span class="token keyword">var</span> arrId <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">;</span></span>
<span class="line"><span class="token keyword">for</span><span class="token punctuation">(</span><span class="token keyword">var</span> item <span class="token keyword">of</span> arr<span class="token punctuation">)</span><span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">if</span><span class="token punctuation">(</span>arrId<span class="token punctuation">.</span><span class="token function">indexOf</span><span class="token punctuation">(</span>item<span class="token punctuation">[</span><span class="token string">'id'</span><span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token operator">==</span> <span class="token operator">-</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">{</span></span>
<span class="line"> arrId<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span>item<span class="token punctuation">[</span><span class="token string">'id'</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"> newArr<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span>item<span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"><span class="token punctuation">}</span></span>
<span class="line">console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span>arrId<span class="token punctuation">,</span>newArr<span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>结果如下：</p><p><img src="https://img-blog.csdnimg.cn/20200312104239269.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25uYWF5Xw==,size_16,color_FFFFFF,t_70" alt=""></p><p>第二种：reduce()</p><div class="language-text line-numbers-mode" data-highlighter="prismjs" data-ext="text" data-title="text"><pre class="language-text"><code><span class="line">var arr = [</span>
<span class="line"> {name:'uzi',color:'blue'},</span>
<span class="line"> {name:'pdd',color:'white'},</span>
<span class="line"> {name:'mlxg',color:'orange'},</span>
<span class="line"> {name:'uzi',color:'red'},</span>
<span class="line">]</span>
<span class="line"></span>
<span class="line">let hash = {};</span>
<span class="line">var newArr = arr.reduce((item, next) => {</span>
<span class="line"> hash[next.name] ? '' : hash[next.name] = true && item.push(next);</span>
<span class="line"> return item</span>
<span class="line">}, []);</span>
<span class="line">console.log(newArr);</span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>结果如下：</p><p><img src="https://img-blog.csdnimg.cn/20200312105942845.png" alt=""></p><p>第三种：</p><div class="language-text line-numbers-mode" data-highlighter="prismjs" data-ext="text" data-title="text"><pre class="language-text"><code><span class="line">let arr = [</span>
<span class="line"> {name:'黎明',id:21111},</span>
<span class="line"> {name:'王小二',id:1111},</span>
<span class="line"> {name:'大小二',id:3222}</span>
<span class="line">]</span>
<span class="line"></span>
<span class="line">arr.splice(arr.findIndex(item => item.id === 3222), 1); </span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>结果如下：</p><p><img src="https://img-blog.csdnimg.cn/20200312111108761.png" alt=""></p><h4 id="_2、数组对象完全相同的去除" tabindex="-1"><a class="header-anchor" href="#_2、数组对象完全相同的去除"><span>2、数组对象完全相同的去除</span></a></h4><p>第一种：</p><div class="language-javascript line-numbers-mode" data-highlighter="prismjs" data-ext="js" data-title="js"><pre class="language-javascript"><code><span class="line"> <span class="token keyword">function</span> <span class="token function">delObj</span><span class="token punctuation">(</span><span class="token parameter">obj</span><span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">var</span> uniques <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token keyword">var</span> stringify <span class="token operator">=</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token keyword">var</span> i <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator"><</span> obj<span class="token punctuation">.</span>length<span class="token punctuation">;</span> i<span class="token operator">++</span><span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">var</span> keys <span class="token operator">=</span> Object<span class="token punctuation">.</span><span class="token function">keys</span><span class="token punctuation">(</span>obj<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"> keys<span class="token punctuation">.</span><span class="token function">sort</span><span class="token punctuation">(</span><span class="token keyword">function</span><span class="token punctuation">(</span><span class="token parameter">a<span class="token punctuation">,</span> b</span><span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">return</span> <span class="token punctuation">(</span><span class="token function">Number</span><span class="token punctuation">(</span>a<span class="token punctuation">)</span> <span class="token operator">-</span> <span class="token function">Number</span><span class="token punctuation">(</span>b<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token keyword">var</span> str <span class="token operator">=</span> <span class="token string">''</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token keyword">var</span> j <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span> j <span class="token operator"><</span> keys<span class="token punctuation">.</span>length<span class="token punctuation">;</span> j<span class="token operator">++</span><span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> str <span class="token operator">+=</span> <span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">stringify</span><span class="token punctuation">(</span>keys<span class="token punctuation">[</span>j<span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"> str <span class="token operator">+=</span> <span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">stringify</span><span class="token punctuation">(</span>obj<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">[</span>keys<span class="token punctuation">[</span>j<span class="token punctuation">]</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"> <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token operator">!</span>stringify<span class="token punctuation">.</span><span class="token function">hasOwnProperty</span><span class="token punctuation">(</span>str<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> uniques<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span>obj<span class="token punctuation">[</span>i<span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"> stringify<span class="token punctuation">[</span>str<span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token boolean">true</span><span class="token punctuation">;</span></span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"> uniques <span class="token operator">=</span> uniques<span class="token punctuation">;</span></span>
<span class="line"> <span class="token keyword">return</span> uniques<span class="token punctuation">;</span></span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"> <span class="token keyword">var</span> arr <span class="token operator">=</span> <span class="token punctuation">[</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span><span class="token string">'uzi'</span><span class="token punctuation">,</span><span class="token literal-property property">color</span><span class="token operator">:</span><span class="token string">'blue'</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span><span class="token string">'pdd'</span><span class="token punctuation">,</span><span class="token literal-property property">color</span><span class="token operator">:</span><span class="token string">'white'</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span><span class="token string">'mlxg'</span><span class="token punctuation">,</span><span class="token literal-property property">color</span><span class="token operator">:</span><span class="token string">'orange'</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span><span class="token string">'uzi'</span><span class="token punctuation">,</span><span class="token literal-property property">color</span><span class="token operator">:</span><span class="token string">'blue'</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token punctuation">]</span></span>
<span class="line"> console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token string">'arr：'</span><span class="token punctuation">,</span><span class="token function">delObj</span><span class="token punctuation">(</span>arr<span class="token punctuation">)</span><span class="token punctuation">)</span></span>
<span class="line"> </span>
<span class="line"> <span class="token keyword">var</span> arr1 <span class="token operator">=</span> <span class="token punctuation">[</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span><span class="token string">'uzi'</span><span class="token punctuation">,</span><span class="token literal-property property">color</span><span class="token operator">:</span><span class="token string">'blue'</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span><span class="token string">'pdd'</span><span class="token punctuation">,</span><span class="token literal-property property">color</span><span class="token operator">:</span><span class="token string">'white'</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span><span class="token string">'mlxg'</span><span class="token punctuation">,</span><span class="token literal-property property">color</span><span class="token operator">:</span><span class="token string">'orange'</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token punctuation">{</span><span class="token literal-property property">name</span><span class="token operator">:</span><span class="token string">'uzi'</span><span class="token punctuation">,</span><span class="token literal-property property">color</span><span class="token operator">:</span><span class="token string">'red'</span><span class="token punctuation">}</span><span class="token punctuation">,</span></span>
<span class="line"> <span class="token punctuation">]</span></span>
<span class="line"> console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token string">'arr1：'</span><span class="token punctuation">,</span><span class="token function">delObj</span><span class="token punctuation">(</span>arr1<span class="token punctuation">)</span><span class="token punctuation">)</span></span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p><img src="https://img-blog.csdnimg.cn/20200312104840231.png" alt=""></p><p><img src="https://img-blog.csdnimg.cn/20200312104733872.png" alt=""></p><h2 id="_5-对象数组去重【现锋】" tabindex="-1"><a class="header-anchor" href="#_5-对象数组去重【现锋】"><span>5.对象数组去重【现锋】</span></a></h2><div class="language-javascript line-numbers-mode" data-highlighter="prismjs" data-ext="js" data-title="js"><pre class="language-javascript"><code><span class="line"><span class="token keyword">let</span> newArr <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">]</span></span>
<span class="line">newdataArray<span class="token punctuation">.</span><span class="token function">forEach</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token parameter">item</span><span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">let</span> isClude <span class="token operator">=</span> <span class="token boolean">false</span></span>
<span class="line"> newArr<span class="token punctuation">.</span><span class="token function">forEach</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token parameter">item1</span><span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">stringify</span><span class="token punctuation">(</span>item<span class="token punctuation">)</span> <span class="token operator">===</span> <span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">stringify</span><span class="token punctuation">(</span>item1<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> isClude <span class="token operator">=</span> <span class="token boolean">true</span></span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"> <span class="token punctuation">}</span><span class="token punctuation">)</span></span>
<span class="line"> <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token operator">!</span>isClude<span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> newArr<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span>item<span class="token punctuation">)</span></span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"><span class="token punctuation">}</span><span class="token punctuation">)</span></span>
<span class="line">console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token string">'newArr'</span><span class="token punctuation">,</span> newArr<span class="token punctuation">)</span></span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="_6-对象数组中的-根据单一对象值来去重【现锋】" tabindex="-1"><a class="header-anchor" href="#_6-对象数组中的-根据单一对象值来去重【现锋】"><span>6.对象数组中的 根据单一对象值来去重【现锋】</span></a></h2><div class="language-javascript line-numbers-mode" data-highlighter="prismjs" data-ext="js" data-title="js"><pre class="language-javascript"><code><span class="line"><span class="token keyword">let</span> newArr <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">]</span></span>
<span class="line">newdataArray<span class="token punctuation">.</span><span class="token function">forEach</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token parameter">item</span><span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">let</span> isClude <span class="token operator">=</span> <span class="token boolean">false</span></span>
<span class="line"> newArr<span class="token punctuation">.</span><span class="token function">forEach</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token parameter">item1</span><span class="token punctuation">)</span> <span class="token operator">=></span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">stringify</span><span class="token punctuation">(</span>item<span class="token punctuation">.</span>title<span class="token punctuation">)</span> <span class="token operator">===</span> <span class="token constant">JSON</span><span class="token punctuation">.</span><span class="token function">stringify</span><span class="token punctuation">(</span>item1<span class="token punctuation">.</span>title<span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> isClude <span class="token operator">=</span> <span class="token boolean">true</span></span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"> <span class="token punctuation">}</span><span class="token punctuation">)</span></span>
<span class="line"> <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token operator">!</span>isClude<span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> newArr<span class="token punctuation">.</span><span class="token function">push</span><span class="token punctuation">(</span>item<span class="token punctuation">)</span></span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"><span class="token punctuation">}</span><span class="token punctuation">)</span></span>
<span class="line">console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span><span class="token string">'newArr'</span><span class="token punctuation">,</span> newArr<span class="token punctuation">)</span></span>
<span class="line"></span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="_7-用于多个字符串-变成用逗号分割的多个字符串" tabindex="-1"><a class="header-anchor" href="#_7-用于多个字符串-变成用逗号分割的多个字符串"><span>7.用于多个字符串 变成用逗号分割的多个字符串</span></a></h2><div class="language-javascript line-numbers-mode" data-highlighter="prismjs" data-ext="js" data-title="js"><pre class="language-javascript"><code><span class="line"><span class="token keyword">function</span> <span class="token function">linkString</span><span class="token punctuation">(</span><span class="token parameter">aaaaaaaaaaa<span class="token punctuation">,</span> bbbbbbbbbbb<span class="token punctuation">,</span> ccccccccccc</span><span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">let</span> newPicString1 <span class="token operator">=</span> <span class="token string">""</span></span>
<span class="line"> <span class="token keyword">if</span> <span class="token punctuation">(</span>newPicString1<span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">if</span> <span class="token punctuation">(</span>aaaaaaaaaaa<span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> newPicString1 <span class="token operator">=</span> newPicString1 <span class="token operator">+</span> <span class="token string">','</span> <span class="token operator">+</span> aaaaaaaaaaa</span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"> <span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span></span>
<span class="line"> newPicString1 <span class="token operator">=</span> aaaaaaaaaaa</span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"></span>
<span class="line"> <span class="token keyword">if</span> <span class="token punctuation">(</span>newPicString1<span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">if</span> <span class="token punctuation">(</span>bbbbbbbbbbb<span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> newPicString1 <span class="token operator">=</span> newPicString1 <span class="token operator">+</span> <span class="token string">','</span> <span class="token operator">+</span> bbbbbbbbbbb</span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"> <span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span></span>
<span class="line"> newPicString1 <span class="token operator">=</span> bbbbbbbbbbb</span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"></span>
<span class="line"> <span class="token keyword">if</span> <span class="token punctuation">(</span>newPicString1<span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> <span class="token keyword">if</span> <span class="token punctuation">(</span>ccccccccccc<span class="token punctuation">)</span> <span class="token punctuation">{</span></span>
<span class="line"> newPicString1 <span class="token operator">=</span> newPicString1 <span class="token operator">+</span> <span class="token string">','</span> <span class="token operator">+</span> ccccccccccc</span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"> <span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token punctuation">{</span></span>
<span class="line"> newPicString1 <span class="token operator">=</span> ccccccccccc</span>
<span class="line"> <span class="token punctuation">}</span></span>
<span class="line"> <span class="token keyword">return</span> newPicString1</span>
<span class="line"><span class="token punctuation">}</span></span>
<span class="line"></span>
<span class="line"><span class="token keyword">let</span> aaaaaaaaaaa <span class="token operator">=</span> <span class="token string">"你是不是大聪明"</span></span>
<span class="line"><span class="token keyword">let</span> bbbbbbbbbbb <span class="token operator">=</span> <span class="token string">""</span></span>
<span class="line"><span class="token keyword">let</span> ccccccccccc <span class="token operator">=</span> <span class="token string">"是"</span> </span>
<span class="line"><span class="token keyword">const</span> newString1 <span class="token operator">=</span> <span class="token function">linkString</span><span class="token punctuation">(</span>aaaaaaaaaaa<span class="token punctuation">,</span> bbbbbbbbbbb<span class="token punctuation">,</span> ccccccccccc<span class="token punctuation">)</span></span>
<span class="line">console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span>newString1<span class="token punctuation">,</span> <span class="token string">'linkString(aaaaaaaaaaa,bbbbbbbbbbb,ccccccccccc)'</span><span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="_8-数组转为-逗号-分割的-的字符串" tabindex="-1"><a class="header-anchor" href="#_8-数组转为-逗号-分割的-的字符串"><span>8. 数组转为 逗号 分割的 的字符串</span></a></h2><div class="language-javascript line-numbers-mode" data-highlighter="prismjs" data-ext="js" data-title="js"><pre class="language-javascript"><code><span class="line"><span class="token keyword">const</span> list<span class="token operator">=</span> <span class="token punctuation">[</span><span class="token string">'aaa'</span><span class="token punctuation">,</span><span class="token string">'vvvv'</span><span class="token punctuation">,</span><span class="token string">''</span><span class="token punctuation">,</span><span class="token string">'dsfsdf'</span><span class="token punctuation">]</span></span>
<span class="line">console<span class="token punctuation">.</span><span class="token function">log</span><span class="token punctuation">(</span>list<span class="token punctuation">.</span><span class="token function">join</span><span class="token punctuation">(</span><span class="token string">','</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span></span>
<span class="line"></span></code></pre><div class="line-numbers" aria-hidden="true" style="counter-reset:line-number 0;"><div class="line-number"></div><div class="line-number"></div></div></div></div><!--[--><!--]--></div><footer class="vp-page-meta"><div class="vp-meta-item edit-link"><a class="auto-link external-link label" href="https://github.com/shixindea/shixinde-notes/edit/main/飞码篇/js函数封装.md" aria-label="Edit this page" rel="noopener noreferrer" target="_blank"><!--[--><svg class="edit-icon" viewbox="0 0 1024 1024"><g fill="currentColor"><path d="M430.818 653.65a60.46 60.46 0 0 1-50.96-93.281l71.69-114.012 7.773-10.365L816.038 80.138A60.46 60.46 0 0 1 859.225 62a60.46 60.46 0 0 1 43.186 18.138l43.186 43.186a60.46 60.46 0 0 1 0 86.373L588.879 565.55l-8.637 8.637-117.466 68.234a60.46 60.46 0 0 1-31.958 11.229z"></path><path d="M728.802 962H252.891A190.883 190.883 0 0 1 62.008 771.98V296.934a190.883 190.883 0 0 1 190.883-192.61h267.754a60.46 60.46 0 0 1 0 120.92H252.891a69.962 69.962 0 0 0-69.098 69.099V771.98a69.962 69.962 0 0 0 69.098 69.098h475.911A69.962 69.962 0 0 0 797.9 771.98V503.363a60.46 60.46 0 1 1 120.922 0V771.98A190.883 190.883 0 0 1 728.802 962z"></path></g></svg><!--]-->Edit this page<!----></a></div><div class="vp-meta-item git-info"><div class="vp-meta-item last-updated"><span class="meta-item-label">Last Updated: </span><!----></div><div class="vp-meta-item contributors"><span class="meta-item-label">Contributors: </span><span class="meta-item-info"><!--[--><!--[--><span class="contributor" title="email: 2914310412@qq.com">袁果锅</span><!----><!--]--><!--]--></span></div></div></footer><nav class="vp-page-nav" aria-label="page navigation"><a class="route-link auto-link prev" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/VueX%20%E7%AC%94%E8%AE%B0.html" aria-label="8. VueX 笔记.md"><div class="hint"><span class="arrow left"></span> Prev</div><div class="link"><span>8. VueX 笔记.md</span></div></a><a class="route-link auto-link next" href="/guoguo-notes/%E9%A3%9E%E7%A0%81%E7%AF%87/js%E5%B8%B8%E8%A7%84.html" aria-label="10. js常规.md"><div class="hint">Next <span class="arrow right"></span></div><div class="link"><span>10. js常规.md</span></div></a></nav><!--[--><!--]--></main><!--]--></div><!--[--><!----><!----><!--]--><!--]--></div>
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