<script type = "text/javascript">var arr = ["HTML","CSS","JavaScript","DOM"];var arr2 = ["ASP.NET","PHP","J2EE","Python","Ruby"];var arrNew = arr.concat(arr2);var arr3 = ["1","2","3","4"];var arrNewNew = arr.concat(arr2,arr3);</script>
上面的代码执行完,arrNew将是arr和arr2两个数组的组合,arrNew的length是两个数组length之和。
concat方法也可以接受多个参数。例如:var arrNewNew = arr.concat(arr2,arr3); 这个语句将arr与arr2与arr3一起连接成一个新的数组。
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