jsdk-offical

<!doctype html> <html class="default no-js"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Number | JSDK 2.7.0 API</title> <meta name="description" content="Documentation for JSDK 2.7.0 API"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="../assets/css/main.css"> </head> <body> <header> <div class="tsd-page-toolbar"> <div class="container"> <div class="table-wrap"> <div class="table-cell" id="tsd-search" data-index="../assets/js/search.json" data-base=".."> <div class="field"> <label for="tsd-search-field" class="tsd-widget search no-caption">Search</label> <input id="tsd-search-field" type="text" /> </div> <ul class="results"> <li class="state loading">Preparing search index...</li> <li class="state failure">The search index is not available</li> </ul> <a href="../index.html" class="title">JSDK 2.7.0 API</a> </div> <div class="table-cell" id="tsd-widgets"> <div id="tsd-filter"> <a href="#" class="tsd-widget options no-caption" data-toggle="options">Options</a> <div class="tsd-filter-group"> <div class="tsd-select" id="tsd-filter-visibility"> <span class="tsd-select-label">All</span> <ul class="tsd-select-list"> <li data-value="public">Public</li> <li data-value="protected">Public/Protected</li> <li data-value="private" class="selected">All</li> </ul> </div> <input type="checkbox" id="tsd-filter-inherited" checked /> <label class="tsd-widget" for="tsd-filter-inherited">Inherited</label> <input type="checkbox" id="tsd-filter-externals" checked /> <label class="tsd-widget" for="tsd-filter-externals">Externals</label> <input type="checkbox" id="tsd-filter-only-exported" /> <label class="tsd-widget" for="tsd-filter-only-exported">Only exported</label> </div> </div> <a href="#" class="tsd-widget menu no-caption" data-toggle="menu">Menu</a> </div> </div> </div> </div> <div class="tsd-page-title"> <div class="container"> <ul class="tsd-breadcrumb"> <li> <a href="../globals.html">Globals</a> </li> <li> <a href="number.html">Number</a> </li> </ul> <h1>Interface Number</h1> </div> </div> </header> <div class="container container-main"> <div class="row"> <div class="col-8 col-content"> <section class="tsd-panel tsd-comment"> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Add some helpful methods for Number.prototype</p> </div> </div> </section> <section class="tsd-panel tsd-hierarchy"> <h3>Hierarchy</h3> <ul class="tsd-hierarchy"> <li> <span class="target">Number</span> </li> </ul> </section> <section class="tsd-panel-group tsd-index-group"> <h2>Index</h2> <section class="tsd-panel tsd-index-panel"> <div class="tsd-index-content"> <section class="tsd-index-section "> <h3>Methods</h3> <ul class="tsd-index-list"> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#abs" class="tsd-kind-icon">abs</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#add" class="tsd-kind-icon">add</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#div" class="tsd-kind-icon">div</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#equals" class="tsd-kind-icon">equals</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#format" class="tsd-kind-icon">format</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#fractionlength" class="tsd-kind-icon">fraction<wbr>Length</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#fractionalpart" class="tsd-kind-icon">fractional<wbr>Part</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#integerlength" class="tsd-kind-icon">integer<wbr>Length</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#integralpart" class="tsd-kind-icon">integral<wbr>Part</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#iseven" class="tsd-kind-icon">is<wbr>Even</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#isfinite" class="tsd-kind-icon">is<wbr>Finite</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#isfloat" class="tsd-kind-icon">is<wbr>Float</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#isint" class="tsd-kind-icon">is<wbr>Int</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#isnan" class="tsd-kind-icon">is<wbr>NaN</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#isnegative" class="tsd-kind-icon">is<wbr>Negative</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#isodd" class="tsd-kind-icon">is<wbr>Odd</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#ispositive" class="tsd-kind-icon">is<wbr>Positive</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#iszero" class="tsd-kind-icon">is<wbr>Zero</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#mul" class="tsd-kind-icon">mul</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#round" class="tsd-kind-icon">round</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#stringify" class="tsd-kind-icon">stringify</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#sub" class="tsd-kind-icon">sub</a></li> <li class="tsd-kind-method tsd-parent-kind-interface"><a href="number.html#toint" class="tsd-kind-icon">to<wbr>Int</a></li> </ul> </section> </div> </section> </section> <section class="tsd-panel-group tsd-member-group "> <h2>Methods</h2> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="abs" class="tsd-anchor"></a> <h3>abs</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">abs<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns a new abs number.<br> 返回绝对值</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">number</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="add" class="tsd-anchor"></a> <h3>add</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">add<span class="tsd-signature-symbol">(</span>n<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><a href="number.html" class="tsd-signature-type">Number</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns a new added number. The old number will not be changed.<br> 返回新增后数字，原数字不会被改变。</p> </div> </div> <h4 class="tsd-parameters-title">Parameters</h4> <ul class="tsd-parameters"> <li> <h5>n: <span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><a href="number.html" class="tsd-signature-type">Number</a></h5> <div class="tsd-comment tsd-typography"> <p>input number</p> </div> </li> </ul> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">number</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="div" class="tsd-anchor"></a> <h3>div</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">div<span class="tsd-signature-symbol">(</span>n<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><a href="number.html" class="tsd-signature-type">Number</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns a new divided number. The old number will not be changed.<br> 返回新增后数字，原数字不会被改变。</p> </div> </div> <h4 class="tsd-parameters-title">Parameters</h4> <ul class="tsd-parameters"> <li> <h5>n: <span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><a href="number.html" class="tsd-signature-type">Number</a></h5> <div class="tsd-comment tsd-typography"> <p>input number</p> </div> </li> </ul> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">number</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="equals" class="tsd-anchor"></a> <h3>equals</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">equals<span class="tsd-signature-symbol">(</span>n<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><a href="number.html" class="tsd-signature-type">Number</a>, dLen<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">number</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns true if it equals an other number.<br> 是否相等</p> </div> </div> <h4 class="tsd-parameters-title">Parameters</h4> <ul class="tsd-parameters"> <li> <h5>n: <span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><a href="number.html" class="tsd-signature-type">Number</a></h5> </li> <li> <h5><span class="tsd-flag ts-flagOptional">Optional</span> dLen: <span class="tsd-signature-type">number</span></h5> <div class="tsd-comment tsd-typography"> </div> </li> </ul> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="format" class="tsd-anchor"></a> <h3>format</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">format<span class="tsd-signature-symbol">(</span>digit<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">number</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns a format number string<br> 每三位整数逗号分割</p> </div> <pre> Number(1).format(2); //return "1.00" Number(-12345.6789).format(3); //return "-12,345.679" </pre> </div> <h4 class="tsd-parameters-title">Parameters</h4> <ul class="tsd-parameters"> <li> <h5><span class="tsd-flag ts-flagOptional">Optional</span> digit: <span class="tsd-signature-type">number</span></h5> <div class="tsd-comment tsd-typography"> </div> </li> </ul> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">string</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="fractionlength" class="tsd-anchor"></a> <h3>fraction<wbr>Length</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">fraction<wbr>Length<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns the length of fractional part.<br> 返回小数位长度<br></p> </div> <pre> Number(123).fractionLength(); //return 0 Number(123.4567).fractionLength(); //return 4 </pre> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">number</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="fractionalpart" class="tsd-anchor"></a> <h3>fractional<wbr>Part</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">fractional<wbr>Part<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns the fractional part.</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">string</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="integerlength" class="tsd-anchor"></a> <h3>integer<wbr>Length</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">integer<wbr>Length<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns the length of intergral part.<br> 返回整数位长度<br></p> </div> <pre> Number(0.1234).integerLength(); //return 0 Number(123.4567).fractionLength(); //return 3 </pre> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">number</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="integralpart" class="tsd-anchor"></a> <h3>integral<wbr>Part</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">integral<wbr>Part<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns the integral part.</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">string</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="iseven" class="tsd-anchor"></a> <h3>is<wbr>Even</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">is<wbr>Even<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Is an even number?<br> 是否是偶数</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="isfinite" class="tsd-anchor"></a> <h3>is<wbr>Finite</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">is<wbr>Finite<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Is a finite number?<br> 是否有效数字</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="isfloat" class="tsd-anchor"></a> <h3>is<wbr>Float</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">is<wbr>Float<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Is a float number?<br> 是否浮点数</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="isint" class="tsd-anchor"></a> <h3>is<wbr>Int</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">is<wbr>Int<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Is an integer number?<br> 是否整数</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="isnan" class="tsd-anchor"></a> <h3>is<wbr>NaN</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">is<wbr>NaN<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Is NaN? <br> 是否数字</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="isnegative" class="tsd-anchor"></a> <h3>is<wbr>Negative</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">is<wbr>Negative<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Is a negative number?<br> 是否负数</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="isodd" class="tsd-anchor"></a> <h3>is<wbr>Odd</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">is<wbr>Odd<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Is an odd number?<br> 是否是奇数</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="ispositive" class="tsd-anchor"></a> <h3>is<wbr>Positive</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">is<wbr>Positive<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Is a positive number?<br> 是否正数</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="iszero" class="tsd-anchor"></a> <h3>is<wbr>Zero</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">is<wbr>Zero<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">boolean</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Is zero?<br> 是否是零</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">boolean</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="mul" class="tsd-anchor"></a> <h3>mul</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">mul<span class="tsd-signature-symbol">(</span>n<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><a href="number.html" class="tsd-signature-type">Number</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns a new multiplied number. The old number will not be changed.<br> 返回新增后数字，原数字不会被改变。</p> </div> </div> <h4 class="tsd-parameters-title">Parameters</h4> <ul class="tsd-parameters"> <li> <h5>n: <span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><a href="number.html" class="tsd-signature-type">Number</a></h5> <div class="tsd-comment tsd-typography"> <p>input number</p> </div> </li> </ul> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">number</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="round" class="tsd-anchor"></a> <h3>round</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">round<span class="tsd-signature-symbol">(</span>digit<span class="tsd-signature-symbol">?: </span><span class="tsd-signature-type">number</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns a new round number.<br> 四舍五入，保留N位小数位数</p> </div> </div> <h4 class="tsd-parameters-title">Parameters</h4> <ul class="tsd-parameters"> <li> <h5><span class="tsd-flag ts-flagOptional">Optional</span> digit: <span class="tsd-signature-type">number</span></h5> </li> </ul> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">number</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="stringify" class="tsd-anchor"></a> <h3>stringify</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">stringify<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">string</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns a number string.<br> 返回数字字符串</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">string</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="sub" class="tsd-anchor"></a> <h3>sub</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">sub<span class="tsd-signature-symbol">(</span>n<span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><a href="number.html" class="tsd-signature-type">Number</a><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns a new substracted number. The old number will not be changed.<br> 返回新增后数字，原数字不会被改变。</p> </div> </div> <h4 class="tsd-parameters-title">Parameters</h4> <ul class="tsd-parameters"> <li> <h5>n: <span class="tsd-signature-type">number</span><span class="tsd-signature-symbol"> | </span><span class="tsd-signature-type">string</span><span class="tsd-signature-symbol"> | </span><a href="number.html" class="tsd-signature-type">Number</a></h5> <div class="tsd-comment tsd-typography"> <p>input number</p> </div> </li> </ul> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">number</span></h4> </li> </ul> </section> <section class="tsd-panel tsd-member tsd-kind-method tsd-parent-kind-interface"> <a name="toint" class="tsd-anchor"></a> <h3>to<wbr>Int</h3> <ul class="tsd-signatures tsd-kind-method tsd-parent-kind-interface"> <li class="tsd-signature tsd-kind-icon">to<wbr>Int<span class="tsd-signature-symbol">(</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">: </span><span class="tsd-signature-type">number</span></li> </ul> <ul class="tsd-descriptions"> <li class="tsd-description"> <aside class="tsd-sources"> </aside> <div class="tsd-comment tsd-typography"> <div class="lead"> <p>Returns a new integer.<br> 转换为整数。注意：采取四舍五入。</p> </div> </div> <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">number</span></h4> </li> </ul> </section> </section> </div> <div class="col-4 col-menu menu-sticky-wrap menu-highlight"> <nav class="tsd-navigation primary"> <ul> <li class="globals "> <a href="../globals.html"><em>Globals</em></a> </li> </ul> </nav> <nav class="tsd-navigation secondary menu-sticky"> <ul class="before-current"> </ul> <ul class="current"> <li class="current tsd-kind-interface"> <a href="number.html" class="tsd-kind-icon">Number</a> <ul> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#abs" class="tsd-kind-icon">abs</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#add" class="tsd-kind-icon">add</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#div" class="tsd-kind-icon">div</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#equals" class="tsd-kind-icon">equals</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#format" class="tsd-kind-icon">format</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#fractionlength" class="tsd-kind-icon">fraction<wbr>Length</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#fractionalpart" class="tsd-kind-icon">fractional<wbr>Part</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#integerlength" class="tsd-kind-icon">integer<wbr>Length</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#integralpart" class="tsd-kind-icon">integral<wbr>Part</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#iseven" class="tsd-kind-icon">is<wbr>Even</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#isfinite" class="tsd-kind-icon">is<wbr>Finite</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#isfloat" class="tsd-kind-icon">is<wbr>Float</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#isint" class="tsd-kind-icon">is<wbr>Int</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#isnan" class="tsd-kind-icon">is<wbr>NaN</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#isnegative" class="tsd-kind-icon">is<wbr>Negative</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#isodd" class="tsd-kind-icon">is<wbr>Odd</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#ispositive" class="tsd-kind-icon">is<wbr>Positive</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#iszero" class="tsd-kind-icon">is<wbr>Zero</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#mul" class="tsd-kind-icon">mul</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#round" class="tsd-kind-icon">round</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#stringify" class="tsd-kind-icon">stringify</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#sub" class="tsd-kind-icon">sub</a> </li> <li class=" tsd-kind-method tsd-parent-kind-interface"> <a href="number.html#toint" class="tsd-kind-icon">to<wbr>Int</a> </li> </ul> </li> </ul> <ul class="after-current"> </ul> </nav> </div> </div> </div> <footer> <div class="container"> <h2>Legend</h2> <div class="tsd-legend-group"> <ul class="tsd-legend"> <li class="tsd-kind-property tsd-parent-kind-interface"><span class="tsd-kind-icon">Property</span></li> <li class="tsd-kind-method tsd-parent-kind-interface"><span class="tsd-kind-icon">Method</span></li> </ul> </div> </div> </footer> <div class="overlay"></div> <script src="../assets/js/main.js"></script> <script>if (location.protocol == 'file:') document.write('<script src="../assets/js/search.js"><' + '/script>');</script> </body> </html>