javascript - Sorting array by use only number in strings

Question

I would like to sort

array = ['3 a','4 v','2 x','1 j','2 x']

The result should be

array = ['1 j','2 x','2 x','3 a','4 v']

It should be use only number to sorting.

any ideas?

http://stackoverflow.com/a/3108797/295783 – mplungjan Dec 24 '14 at 10:54 — mplungjan, Dec 24 '14 at 10:54
Should it sort 1 c, 2 e, 100 q? – luxas Dec 24 '14 at 10:56 — luxas, Dec 24 '14 at 10:56

Oleksandr T. · Accepted Answer · 2014-12-24T11:03:24.763

2

Like this

var data = ['3 a','4 v','2 x','1 j','2 x'];

data.sort(function (a, b) {
  return parseInt(a) - parseInt(b);
});

console.log(data);

If data looks like this ['a 3','v 5','2 x','1 j','2 x']; you can use this approach

data.sort(function (a, b) {
  a = (a = a.match(/\d+/)) && a[0];
  b = (b = b.match(/\d+/)) && b[0];

  return a - b;
});

edited Dec 24 '14 at 11:03

answered Dec 24 '14 at 10:52

Oleksandr T.

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score 0 · Answer 2 · answered Dec 24 '14 at 11:09

If you have other formatting than "number blankspace letter" you could use this:

var data = ['3 a','4 v','2 x','1 j','2 x', '100 y'],
    regex = /[0-9]+/g

data.sort(function (a, b) {
  return (a.match(regex)[0] || 0) - (b.match(regex)[0] || 0)
});

console.log(data);

Works for "jdhsbfyus00789iutasvd iush d" also.

It takes the first number, e. g. if it was a string like this: "hfjf02 uy fdi88" it would have 2 as value.

You could modify the regex certainly if you would search for something else.

Hope it helps :)

javascript - Sorting array by use only number in strings

2 Answers2