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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:67.0) Gecko/20100101 Firefox/67.0

Browser: Firefox 67

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 5 years ago

HTML Preparation code:

<script src="https://code.jquery.com/jquery-3.1.1.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 };
jQuery.extend
var params = { b:"hello", c: true, d:7 }; var other = $.extend({ a: 2 }, params);