jQuery.trim()方法

$.trim()方法作用是删除一个字符串的开头和结尾的空白(包括换行、空格等等)。

<!DOCTYPE html>
<html>
<head>
  <script src="http://code.jquery.com/jquery-1.9.1.js"></script>
</head>
<body>
    <pre id="original"></pre>
    <pre id="trimmed"></pre>
<script>
  var str = "         lots of spaces before and after         ";
  $("#original").html("Original String: '" + str + "'");
  $("#trimmed").html("$.trim()'ed: '" + $.trim(str) + "'");
</script>
</body>
</html>

结果:

使用方法:

$.trim("    hello, how are you?    ");

结果:

"hello, how are you?"

 

posted @ 2013-04-11 00:26  horizon~~~  阅读(391)  评论(0编辑  收藏  举报