Sorted array (join (), reverse (), sort ())

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    <title>数组排序方法（join()、reverse()、sort()）</title>
    <!-- 
        n.join (): convert all values of n array is a string type () can be set within a different delimiter, the default display is a comma separated value;
        n.reverse (): all values in the order n of the array is reversed;
        n.sort (): all values, the sort direction of the array of n can be changed to create a function:
                    The default is to sort the values are translated into strings and then, according to the first digit from small to large
                    n.sort (function (a, b) {return (ab)}) represents the ascending
                    n.sort (function (a, b) {return (ba)}) represents the descending
        Mixed use:
        . N.join () reverse (): all values of n in the array into a string, while the order is reversed;
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    <script>
        //n.join()
        var num1=new Array(1,2,3,4);
        document.write (num1.join () + " <br /> " ); // 1,2,3,4 / default comma 
        document.write (num1.join ( " - " ) + " <br / > " ); // 1-2-3-4 / used herein - spaced 
        // n.reverse () 
        var num2 = new new the Array ( " One " , " II " , " three " );
        document.write (num2.reverse () + " <br /> " ); // three, II, One / reverse order 
        // n.reverse () the Join (). 
        var num3 = [ " store " , " Wu " , " Lu " ]
        document.write (num3.reverse () the Join (. " ~ " ) + " <br /> " ); // LU Ng ~ store ~ / ~ reversed while using symbolic links 
        // n.sort () 
        var num3 = [ 2 , 8 , 65 , - . 9 ]
        document.write (num3.sort () + " <br /> " ); // -9,2,65,8; and changed the string, the first 8 digits maximum 
        document.write (num3.sort ( function ( A, B) { return A - B;}) + " <br /> " ); // -9,2,8,65; ascending 
        document.write (num3.sort ( function (A, B) { return B - A}) + " <br /> " ); // 65,8,2, -9; DESC 
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Sorted array (join (), reverse (), sort ())

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