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Array
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Assert
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<h1 id="assert">Assert</h1>
<h2 id="utilassertdef">util.Assert.def</h2>
<p>值为空值时， 返回默认值。</p>
<pre class="language-"><code>// result: 0
util.Assert.def('', 0);
</code></pre><h2 id="utilasserthasemtpy">util.Assert.hasEmtpy</h2>
<p>是否为空值。</p>
<pre class="language-"><code>// result: true
util.Assert.hasEmtpy({});
// result: true
util.Assert.hasEmtpy([]);
// result: true
util.Assert.hasEmtpy('');
// result: true
util.Assert.hasEmtpy(null);
// result: true
util.Assert.hasEmtpy(undefined);
</code></pre><h2 id="utilasserthas">util.Assert.has</h2>
<p>判断对象是否为其中一个类型</p>
<pre class="language-"><code>util.Assert.has('number,string', obj);
</code></pre><h2 id="utilasserthasdate">util.Assert.hasDate</h2>
<p>是否为日期对象。</p>
<pre class="language-"><code>// result: true
util.Assert.hasDate(new Date());
</code></pre><h2 id="utilasserthasstr">util.Assert.hasStr</h2>
<p>是否为字符串。</p>
<pre class="language-"><code>// result: true
util.Assert.hasStr('');
</code></pre><h2 id="utilasserthasfile">util.Assert.hasFile</h2>
<p>是否为文件。</p>
<pre class="language-"><code>// result: true
util.Assert.hasFile(new File());
</code></pre><h2 id="utilasserthasfunc">util.Assert.hasFunc</h2>
<p>是否为函数。</p>
<pre class="language-"><code>// result: true
util.Assert.hasFunc(new Function());
</code></pre><h2 id="utilasserthasobj">util.Assert.hasObj</h2>
<p>是否为对象。</p>
<pre class="language-"><code>// result: true
util.Assert.hasObj(new Object());
</code></pre><h2 id="utilasserthaspromise">util.Assert.hasPromise</h2>
<p>是否为一个Promise对象, 有些较老的安卓系统不支持instanceof Promise。</p>
<pre class="language-"><code>// result: true
util.Assert.hasPromise(new Promise());
</code></pre>
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