Javascript 数组添加 shuffle 方法的实现代码

<script type="text/javascript">
//<![CDATA[
var shuffle = function(v){
for(var j, x, i = v.length; i; j = parseInt(Math.random() * i), x = v[--i], v[i] = v[j], v[j] = x);
return v;
};
var a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
document.write("A = ", a.join(","), "<br><br>shuffle(A) = ", shuffle(a));
if (!Array.prototype.shuffle) {
Array.prototype.shuffle = function() {
for(var j, x, i = this.length; i; j = parseInt(Math.random() * i), x = this[--i], this[i] = this[j], this[j] = x);
return this;
};
}
document.write("<br>A.shuffle() = ", a.shuffle());
//]]>
</script>




[Ctrl+A 全选 注:
如需引入外部Js需刷新才能执行]

请刷新页面查看随机排序效果。



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