JavaScript RegExp p{N1, N2}
说明
p{N1, N2} 匹配任何包含 N1 或 N2 个 p 序列的字符串。
示例
以下示例显示了 RegExp 表达式的用法。
<html>
<head>
<title>JavaScript RegExp</title>
</head>
<body>
<script type = "text/javascript">
var str = "abcpp";
var pattern = /p{2,3}/g;
var result = str.match(pattern);
document.write("Test 1-returned value : " + result);
str = "abcp";
result = str.match(pattern);
document.write("<br/>Test 2-returned value : " + result);
</script>
</body>
</html>
输出
Test 1-returned value : pp
Test 2-returned value : null