Sorting an array by number inside string

Question

I have an array:

var arr = [ '4msterdam', 'Par1s', 'N3w York', '2urich'];

How can I sort the array by the number that's contained in each element of the array?

What kind of strange application needs this? – Barmar Mar 05 '17 at 21:25 — Barmar, Mar 05 '17 at 21:25
Łukasz, would you like to accept my answer/ upvote it? – kind user Mar 14 '17 at 15:48 — kind user, Mar 14 '17 at 15:48

score 1 · Answer 1 · answered Mar 05 '17 at 21:24

A good approach would be using Array#sort and RegExp for array sorting, based on the first matched digit in every element.

var arr = ['4msterdam', 'Par1s', 'N3w York', '2urich'];
    sorted = arr.sort((a,b) => a.match(/\d/)[0] - b.match(/\d/)[0]);
    
    console.log(sorted);

Sorting an array by number inside string

1 Answers1