array.slice(start, end)

var newArray=oldArray.slice(0);

小小意思,不成敬意,要是你觉得它好用的话就拿去用吧 :)

— EOF —


  1. <script type="text/javascript">
    var a = [1,2,3];
    var b = a.slice(0);
    a[0] = 4;
    alert(a); // [4,2,3]
    alert(b); // [1,2,3]


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