javascript當中Function用法

時間 2020-01-09

標籤 javascript 當中 function 用法欄目 JavaScript 简体版

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4）Function用法

例 3.4.1

<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
</head>
<script>
    /*When the Global object is created, it always has at least the following properties:
       Object object
       Function object
       Array object
       String object
       Boolean object
       Number object
       Date object
       Math object
       Value properties
   */

    /*Function的好處是，函數體能夠是運行時的一個傳入的動態字符串，for the Function class, the last parameter is
    function body, while the parameters before the last one are input arguments., 'x' can be changed to "x" */
    var a='return x + y;';
    var f = new Function('x', 'y',a );// 等價於var f = function(x, y){return x + y;}
    document.write(f(1, 1));
</script>html

文章轉載自：https://blog.csdn.net/qq_44594249/article/details/100015900函數

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