CODEWITHSUNDEEP
javascriptregexbackreference
user1464055
user1464055

Reputation: 633

Back-references in JavaScript regular expressions

Is there anyway to pick up back-references?

var name = "HELLO WORLD"
var patt = /\S+\s(.+)/;
alert(name.match(patt));

This is just a simple example to get every word after the first.

But, if I alert $1, nothing pops up and I'm not sure why. I'd appreciate any help!

Upvotes: 0

Views: 1299

Answers (1)

user1464055
user1464055

Reputation: 633

Just a quick solution to this if anyone is actually looking for this.

You can use RegExp.$X where X is the digit of the reference you seek. match returns an array as well, which you can use to see whether things matched as well as the backreferences in the following indices.

Upvotes: 2

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