Sort the Multidimensional array alpha numerically

Question

Here is my Array, I need to sort the second element

[{id:1,name:beta},
{id:2,name:alpha},
{id:3,name:charlie}]

How can i sort it like

[{id:2,name:alpha},
    {id:1,name:beta},
    {id:3,name:charlie}]

I tried like

roles = roles.sort(function(a,b) {
      return a[1] - b[1];
    });

and

roles = roles.sort(function(a,b) {
      return a.name - b.name;
    });

It doesn't sort like expected, as i have object inside the array. How can i do it ?

try -> `return a.name.localeCompare(b.name);` A string minus a string really doesn't make much sense.. :) — Keith, Feb 02 '18 at 10:07
// With underscore js var obj = [{id:1,name:"beta"}, {id:2,name:"alpha"}, {id:3,name:"charlie"}]; var result = _.sortBy(obj,"name"); console.log(result); — Dipak, Feb 02 '18 at 10:25

Zenoo · Accepted Answer · 2018-02-02T10:31:01.127

3

Compare a.name and b.name in your sort function.

var arr = [
  {
    id: 1,
    name: 'beta'
  },
  {
    id: 2,
    name: 'alpha'
  },
  {
    id: 3,
    name: 'charlie'
  }
];

arr = arr.sort(function(a,b){
  return +(a.name > b.name);
});

console.log(arr);

edited Feb 02 '18 at 10:31

answered Feb 02 '18 at 10:05

Zenoo

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Please be aware the `>` only short-cut may have issues -> https://stackoverflow.com/questions/34466125/sort-strings-by-using-less-greater-than-comparison-operators-in-comparator – Keith Feb 02 '18 at 10:14
1

@Keith I never realized that, thanks for the heads up ! – Zenoo Feb 02 '18 at 10:17
In typescript it shows error, can you please fix for it too – SA__ Feb 02 '18 at 10:21
@SA__ Works fine for me. What's the error? – Zenoo Feb 02 '18 at 10:22
It shows this error , Please see in the image https://i.stack.imgur.com/jVbPh.png – SA__ Feb 02 '18 at 10:26
@SA__ I edited my answer. – Zenoo Feb 02 '18 at 10:31
Thanks a lot buddy :) +1 and accepting answer – SA__ Feb 02 '18 at 10:38
Won't it work , if i have arrays more than 500+ ? It seems working in small number and not in large number – SA__ Feb 02 '18 at 12:12
@SA__ It should work just fine. – Zenoo Feb 02 '18 at 12:15

Sort the Multidimensional array alpha numerically

1 Answers1