How to slice characters from string using regex?

Question

I have the string AccountDB\\DB.

I want to remove the 4 characters in the end \\DB, so desired result is a string looks like AccountDB.

How can I slice the last four characters using regex?

Answer 1

First \\ will be converted to \ in javascript since the backslash sign \ is used to escape the next character, so your string will look like :

"AccountDB\DB"

You could remove the three characters at the end without regex just using slice() function :

"AccountDB\\DB".slice(0, -3); //return AccountDB

alert("AccountDB\\DB".slice(0, -3));

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If you need really to use regex you could use :

/(.+)(...)$/

• . : Matches any character (except newline).

• + : Between one and unlimited times, as many times as possible

• (...)$ : Any three characters at end of the string

Hope this helps.

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alert("AccountDB\\DB".match(/(.+)(...)$/)[1]);