<html> <head> <title>test</title> <script type="text/javascript"> String.prototype.trim = function() { return this.replace(/(^\s*)|(\s*$)/g, ""); } function check(){ var str = document.getElementById("test").value; alert(str.trim()); } </script> </head> <body> <center> <input id="test" type="text" /> <input id="but" type="button" value="检验" onclick="check();"/> </center> </body> </html>
这样就解决了IE上js不支持trim的实现
时间: 2024-10-03 16:38:28