Replace nth match of matches with regex

Question

I\'m trying to find a way to replace nth match of more matches lite this.

string = \"one two three one one\"

How do I target the se

Answer 1

Update :

To make it dynamic use this:

((?:.*?one.*?){1}.*?)one

where the value 1 means (n-1); which in your case is n=2

and replace by:

$1\(one\)

Regex101 Demo

const regex = /((?:.*?one.*?){1}.*?)one/m;
const str = `one two three one one asdfasdf one asdfasdf sdf one`;
const subst = `$1\(one\)`;
const result = str.replace(regex, subst);
console.log( result);