Javascript regexp 替换所有 <br />
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Javascript regexp replace all <br />'s
提问by Tom Gullen
I'm trying to replace any <br />tags that appear AFTER a </h2>tag. This is what I have so far:
我正在尝试替换<br />出现在</h2>标签之后的任何标签。这是我到目前为止：
Text = Text.replace(new RegExp("</h2>(\<br \/\>.+)(.+?)", "g"), '</h2>');
It doesn't seem to work, can anyone help? (No matches are being found).
它似乎不起作用，有人可以帮忙吗？（没有找到匹配项）。
Test case:
测试用例：
<h2>Testing</h2><br /><br /><br />Text
To:
到：
<h2>Testing</h2>Text
回答by mVChr
This is simpler than you're thinking it out to be:
这比您想象的要简单：
Text = Text.replace(new RegExp("</h2>(\<br \/\>)*", "g"), "</h2>");
回答by serby
This would do what you are asking:
这将满足您的要求：
Text = Text.replace(new RegExp("</h2>(<br />)*", "g"), '</h2>');
回答by mu is too short
If you have jQuery kicking around then you can do this safely without regular expressions:
如果你有 jQuery，那么你可以在没有正则表达式的情况下安全地做到这一点：
var $dirty = $('<div>').append('<p>Where is<br>pancakes</p><h2>house?</h2><br><br>');
$dirty.find('h2 ~ br').remove();
var clean = $dirty.html();
// clean is now "<p>Where is<br>pancakes</p><h2>house?</h2>"
This will also insulate against the differences between <br>, <br/>, <br />, <BR>, etc.
这也将针对隔离之间的差异<br>，<br/>，<br />，<BR>，等。
回答by serby
You can also make this a little nicer? using the shorthand regex syntax
你也可以让这个更好一点？使用简写正则表达式语法
Text = Text.replace(/<\/h2>(<br\s*\/>)*/g, '</h2>');
