Why does this regexp throw a javascript error

Question

regexp = new RegExp(\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b);

Error:66SyntaxError: Unrecognized token '\'

You should also see: stackoverflow.com/questions/2966535/… if you are using word boundaries. — user1282358
– user1282358, Commented Mar 21, 2012 at 2:28

Michael Berkowski · Accepted Answer · 2012-03-21 02:11:39Z

5

When calling new RegExp() you must pass the pattern as a string. Enclose it in quotes.

var regexp = new RegExp('\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b');

You could also create it as using the special /pattern/ delimited syntax, in which it is not quoted:

var regexp = /[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,4}/;

answered Mar 21, 2012 at 2:11

Michael Berkowski

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Comments

Ștefan · Accepted Answer · 2012-03-21 02:13:49Z

0

I think the regex should be:

/\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b/

answered Mar 21, 2012 at 2:13

Ștefan

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