JavaScript RegExp – \s
描述
\s
匹配任何空白字符(空格、制表符、换行符)。
例子
以下是 RegExp 表达式的使用示例。
<html>
<head>
<title>JavaScript RegExp</title>
</head>
<body>
<script type = "text/javascript">
var str = "ab c";
var pattern = /\s/g;
var result = str.match(pattern);
document.write("Test 1 - returned value : " + result);
str = "abc";
result = str.match(pattern);
document.write("<br/>Test 2 - returned value : " + result);
</script>
</body>
</html>
输出
Test 1 - returned value :
Test 2 - returned value : null