Run results for: Object.assign vs spread vs _.extend

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; ONEPLUS A5000) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.210 Mobile Safari/537.36

Browser: Chrome Mobile 90

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

HTML Preparation code:

<script src="https://underscorejs.org/underscore-min.js"></script>

Tests:

Object.assign
var params = { b:"hello", c: true, d:7 }; var other = Object.assign({ a: 2 }, params);
spread operator
var params = { b:"hello", c: true, d:7 }; var other = { a: 2, ...params };
_.extend
var params = { b:"hello", c: true, d:7 }; var other = _.extend({ a: 2 }, params);