Run results for: Javascript: Array concat vs spread operator vs push speed test

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; RMX2189) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.99 Mobile Safari/537.36

Browser: Chrome Mobile 80

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Tests:

Array.prototype.concat
var newValue = { foo: 'baz', bar: 'biz' }; var existingArray = []; var i = 0; while(i++ < 10) { existingArray.concat([newValue]); };
spread operator
var newValue = { foo: 'baz', bar: 'biz' }; var existingArray = []; var i = 0; while(i++ < 10) { existingArray = [...existingArray, newValue]; };
Push
var newValue = { foo: 'baz', bar: 'biz' }; var existingArray = []; var i = 0; while(i++ < 10) { existingArray.push(newValue); };