Question

I need to replace text using Javascript. It’s a little different than the other ones I’ve seen on S.O. because the text that needs to be added in is an incrementing integer.

For example: Replace the string: “John Mary Ellen Josh Adam” with “John1 Mary2 Ellen3 Josh4 Adam5”

Answer 1

Use a callback replacer:

var str = "John Mary Ellen Josh Adam", i=0;
str = str.replace(/ /g,function(m) {i++; return i+" ";});

EDIT: Noticed that won’t add a number after “Adam”. That can be fixed just by adding:

i++; str += i;

at the end of the code.

EDIT2: Or all-in-one:

str = str.replace(/ |$/g,function(m) {i++; return i+m[0];});