javascript当中arguments用法

javascript当中arguments用法

8)arguments

例 3.8.1
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
</head>
<script>
    /*  马克-to-win:when there are n functions with the same function name, only the last one is used.  */
    function test()
    {
        document.writeln("no argument constructor.");
    }
    function test(person)
    {
        document.writeln("马克-to-win2");
        /*Function.arguments[] (Collection) The values passed to the function when it is called.
        马克-to-win: inside function,we can directly use arguments.
        */
        var n = arguments.length;
        document.writeln("n is " + n);
        for (var i = 0; i < n; i++)
        {
            document.writeln("马克-to-win3");
            document.writeln(arguments[i])
        }
        document.writeln(person);
        document.writeln(typeof(person) + "is typeof");
    }
    /*when no param, undefined is passed in. no overloaded function concept.*/
    test();
    /*when there is no this function, program stops here.*/
    change();
    document.writeln("finally");
</script>

转载自:https://blog.csdn.net/qq_44594249/article/details/100091795