要求:字符串“
标题
aaaaa”,通过匹配替换得到’标题aaaaa’。代码:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<script>
var str = '<h3 class="title">标题</h3>aaaaa'; //标题aaaaa
// var re=/<.+>/; //因为是贪婪匹配,所以会把<h3 class="title">标题</h3>全匹配到
var re = /<.+?>/g;
str = str.replace(re,"");
console.log(str);
</script>
</body>
</html>