I'm trying to match elements with a name that is 'container1$container2$chkChecked', using a regex of '.+\$chkChecked', but I'm not getting the matches I expect when the element name is as described. What am I doing wrong?
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So what are you expecting and what are you getting?Sietse– Sietse2008-09-18 11:06:13 +00:00Commented Sep 18, 2008 at 11:06
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5 Answers
my guess, by your use of quotes, is you did something like
re = new RegExp('.+\$chkChecked');
which won't work because js takes advantage of the \ in its string interpretation as an escape so it never makes it into the regex interpreter
instead you want
re = new RegExp('.+\\$chkChecked');
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try
string.match( /[$]chkChecked$/ )
alternatively, you could try
string.match( /[^a-zA-Z0-9]chkChecked/ )
( Also, make sure your using // around your regex, otherwise you might be matching using string literals. Not obvious tho without a larger code snippet )
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There's two levels of escaping: one when your code is first parsed (e.g. in case you want to include a ' inside the string), and the second in the regexp engine. So you need two \s before the $ to make the regexp engine not treat it as a special character.
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It looks like it should work.
There's a good Javascript Regex Tester that also says it matches.
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Steven Noble:
which won't work because js takes advantage of the \ in its string interpretation as an escape so it never makes it into the regex interpreter
I intended to use \ as an escape because I'm really looking for a $ in the element name.
