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Sort array of objects by string property value - JavaScript
Suppose, we have an array of Objects like this −
const arr = [ { first_name: 'Lazslo', last_name: 'Jamf' }, { first_name: 'Pig', last_name: 'Bodine' }, { first_name: 'Pirate', last_name: 'Prentice' } ];
We are required to write a JavaScript function that takes in one such array and sort this array according to the alphabetical value of the last_name key.
Example
Following is the code −
const arr = [ { first_name: 'Lazslo', last_name: 'Jamf' }, { first_name: 'Pig', last_name: 'Bodine' }, { first_name: 'Pirate', last_name: 'Prentice' } ]; const sortByLastName = arr => { arr.sort((a, b) => { return a.last_name.charCodeAt(0) - b.last_name.charCodeAt(0); }); }; sortByLastName(arr); console.log(arr);
Output
This will produce the following output on console −
[ { first_name: 'Pig', last_name: 'Bodine' }, { first_name: 'Lazslo', last_name: 'Jamf' }, { first_name: 'Pirate', last_name: 'Prentice' } ]
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