怎么用正则去删除相关的class？

发布于
2017-08-26

目前有部分class名为：

laytable-cell-1-id
laytable-cell-1-sort
laytable-cell-1-title

请问怎么利用正则removeClass去删除这些匹配的class？
顺便求正则表达式

javascript jquery

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3 个回答

得票最新

慕少艾

3.5k269

发布于
2017-08-26

✓ 已被采纳

<!DOCTYPE html>
<html lang="cmn-hans">

<head>
    <meta charset="utf-8">
    <meta http-equiv=X-UA-Compatible content="IE=edge,chrome=1">
    <meta name="renderer" content="webkit">
    <!-- some meta tags, important for SEO"-->
    <meta name="description" content="put a short description in here" />
    <meta name="keywords" content="put your important keywords in here" />
    <title></title>

</head>

<body>
    <div class="laytable-cell-1-id icon">图标移动</div>
    <div class="laytable-cell-1-id">图标移动</div>
    <div class="laytable-cell-1-id">图标移动</div>
    <div class="laytable-cell-1-id">图标移动</div>
    <a href="javascript:void(0)" class="laytable-cell-1-id a-class"></a>
</body>
<script type="text/javascript">
var elements = document.querySelectorAll("*[class^='laytable']");
[].forEach.call(elements,function(item){
    item.className=item.className.replace(/laytable\-cell\-1\-(id|sort|title)\b/g,'')
})
</script>

</html>

SAMPAN

82951319

发布于
2017-08-26

var reg = /\blaytable\-cell\-1\-(id|sort|title)\b/g
var classStr = 'laytable-cell-1-id scd dd laytable-cell-1-sort laytable-cell-1-title2 laytable-cell-2-title laytable-cell-1-title'
classStr.replace(reg, '') // " scd dd  laytable-cell-1-title2 laytable-cell-2-title "