How to escape ^ character in javascript? [duplicate]

Question

For a message in a specific message format (HL7) I'm trying to escape the ^ sign. So the string abc^def^ghi should become abc\^def\^ghi

I tried the following ways:

> "abc^def^ghi".replace("^", "\^"); 'abc^def^ghi' > "abc^def^ghi".replace("^", "\\^"); 'abc\\^def^ghi' > "abc^def^ghi".replace("^", "\\\^"); 'abc\\^def^ghi' > "abc^def^ghi".replace("\^", "\\\^"); 'abc\\^def^ghi' > "abc^def^ghi".replace("\\^", "\\\^"); 'abc^def^ghi' > "abc^def^ghi".replace(/^/g, "\\\^"); '\\^abc^def^ghi' > "abc^def^ghi".replace(/\^/g, "\\\^"); 'abc\\^def\\^ghi' > "abc^def^ghi".replace(/\^/g, "\\^"); 'abc\\^def\\^ghi' > "abc^def^ghi".replace(/\^/g, "\^"); 'abc^def^ghi' > "abc^def^ghi".replace(/\\^/g, "\\\^"); 'abc^def^ghi'

As you can see, none of them work as I want them to. Does anybody know how I can do this?

You already have it "abc^def^ghi".replace(/\^/g, "\\^"); but showing incorrect output. — anubhava
– anubhava, Commented Jul 12, 2017 at 17:02
@anubhava! I used the node repl in the terminal, but I now see it does give the right output in the Chromium console. Thanks for pointing this out! — kramer65
– kramer65, Commented Jul 12, 2017 at 17:08

Andy Ray · Accepted Answer · 2017-07-12 17:00:13Z

2

"abc^def^ghi".replace(/\^/g, "\\\^")

You have to escape ^ in the regex, because it's a special character.

answered Jul 12, 2017 at 17:00

Andy Ray

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