Sort array alphabetically

JavaScript, Array · Feb 15, 2023

Sorts an array of objects alphabetically based on a given property.

Use Array.prototype.sort() to sort the array based on the given property.
Use String.prototype.localeCompare() to compare the values for the given property.

const alphabetical = (arr, getter, order = 'asc') =>
  arr.sort(
    order === 'desc'
      ? (a, b) => getter(b).localeCompare(getter(a))
      : (a, b) => getter(a).localeCompare(getter(b))
  );

const people = [ { name: 'John' }, { name: 'Adam' }, { name: 'Mary' } ];
alphabetical(people, g => g.name);
// [ { name: 'Adam' }, { name: 'John' }, { name: 'Mary' } ]
alphabetical(people, g => g.name, 'desc');
// [ { name: 'Mary' }, { name: 'John' }, { name: 'Adam' } ]

Written by Angelos Chalaris

I'm Angelos Chalaris, a JavaScript software engineer, based in Athens, Greece. The best snippets from my coding adventures are published here to help others learn to code.

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