Javascript正则表达式结束单词未找到

Question

In this regex , I need to match an ending word that starts with '(', ')' or ',' .

Regex :

/[\(\),].*$/

For example, given the text (aaa,bbb)ccc I need to obtain )ccc . Still, it returns the entire text. What's wrong with this regex?

Answer 1

You can use:

'(aaa,bbb)ccc'.match(/[(),][^(),]+$/)
//=> [")ccc"]

[^(),]+ is negation pattern that matches any character but any listed in [^(),] .

Problem with [(),].*$ is that it matches very first ( in input and matches till end.

Answer 2

You can also consider using capturing group while consuming all the characters up to the first ( , ) or , :

.*([(),].*)$

.* will consume as many characters as it can, then any character in this character class [(),] , and then the rest of the characters up to the end.

The )ccc value will be stored in Group 1:

 var re = /.*([(),].*)$/; var str = '(aaa,bbb)ccc'; if ((m = re.exec(str)) !== null) { document.getElementById("res").innerHTML = m[1]; } 

 <div id="res"/> 

Answer 3

试试这个正则表达式：

/[(,)][^(,)]*$/