CODEWITHSUNDEEP
javascriptregex
user3612986
user3612986

Reputation: 325

Replace regExp with certain characters (Javascript)

I have having some issues trying to replace a certain group of special characters in a string. Specifically

str = 'This is some demo copy[300]this should remove the brackets and the copy 300.'

I have been trying to replace it with

str.replace(/[300]/g, "<br />");

with no such luck. I seem to be getting hung on with the brackets[] that also need to be removed. I know that I can remove them individually, and then replace the 300 but I need to replace the set together.

It should return:

This is some demo copy
this should remove the brackets and the copy 300.

Any advice would be extremely appreciative as I am relatively new to regular expressions.

Thanks in advance!

Upvotes: 1

Views: 53

Answers (3)

Mike Cluck
Mike Cluck

Reputation: 32511

You need to escape your square brackets.

str.replace(/\[300\]/g, "<br />");

Upvotes: 0

Paul Roub
Paul Roub

Reputation: 36438

In regular expressions, [ and ] have special meaning. You're asking to replace any 3 or 0 that might be found.

Escape the brackets like so:

str.replace(/\[300\]/g, "<br />");

Upvotes: 4

VisioN
VisioN

Reputation: 145398

Here is a regex for you:

/\[300\]/g

Brackets in regular expressions language define a character set. In your case you simply need to escape them to make things working.

Upvotes: 0

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