正則表達式中使用變量賦值

<script language="javascript"> function check() { var str=document.getElementById("input1").value var s="^正則表達式$" var re = new RegExp(s, "ig"); alert(re.test(str)) } </script> <input value="正則表達式"> <input type="button" value="確定" onclick="check()"> ============================ <script language="javascript"> function check2() { var str2=document.getElementById("input2").value var s2="正則表達式" var re = eval("/^"+s2+"$/ig") alert(re.test(str2)) } </script> <input value="正則表達式"> <input type="button" value="確定" onclick="check2()">
[Ctrl+A 全選 注:如需引入外部Js需刷新才能執(zhí)行]