Benchmark: Object.assign vs spread vs Immutable.js operator for settting values

HTML Preparation code:

<script
  src="https://code.jquery.com/jquery-3.4.1.min.js"
  crossorigin="anonymous"></script>
<script
  src="https://cdnjs.cloudflare.com/ajax/libs/immutable/3.8.2/immutable.js"
  crossorigin="anonymous"></script>

Script Preparation code:

var params = { b:"hello", c: true, d:7 };
var immutable_params = Immutable.Record(params)()

Tests:

Object.assign
var other = Object.assign({ b:"world", c: false, d:2 }, params);
spread operator
var other = { b:"world", c: false, d:2, ...params };
jQuery extend
var other = $.extend({ b:"world", c: false, d:2 }, params);
Immutable merge
var other = immutable_params.merge({ b:"world", c: false, d:2 });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.assign
spread operator
jQuery extend
Immutable merge

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one month ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Browser/OS: Chrome 122 on Linux

View result in a separate tab

Test name	Executions per second
Object.assign	10986090.0 Ops/sec
spread operator	20320250.0 Ops/sec
jQuery extend	8984110.0 Ops/sec
Immutable merge	3680792.0 Ops/sec

Object.assign vs spread vs Immutable.js operator for settting values (version: 0)

Comparing performance of: Object.assign vs spread operator vs jQuery extend vs Immutable merge

Created: 4 years ago by: Guest

Jump to the latest result

Object.assign

spread operator

jQuery extend

Immutable merge

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A