Benchmark: Object.assign jQuery.extend

HTML Preparation code:

<script src="https://code.jquery.com/jquery-2.2.3.min.js"></script>

Tests:

Object.assign
var params = { b:"hello", c: true, d:7 }; var other = Object.assign({ a: 2 }, params);
JSON
var params = { b:"hello", c: true, d:7 }; var other = JSON.parse(JSON.stringify({ b:"hello", c: true, d:7 }));
jQuery.extend
var params = { b:"hello", c: true, d:7 }; var other = $.extend({ a: 2 }, params);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.assign
JSON
jQuery.extend

Fastest: N/A

Slowest: N/A

Latest run results:

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Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

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**Benchmark Overview**

The provided benchmark compares three different methods for assigning properties to an object:

1. `Object.assign()`
2. `jQuery.extend()` (a method introduced by jQuery library)
3. Using `JSON.parse(JSON.stringify())`

**Options Compared**

Each test case uses a different approach to achieve the same goal: assigning properties to an object. The options compared are:

* `Object.assign()`: A built-in JavaScript method that assigns one or more specified values to each property of an existing object.
* `jQuery.extend()`: A method introduced by jQuery library, which extends an existing object with new properties.
* `JSON.parse(JSON.stringify())`: A method that creates a deep copy of an object using the JSON.stringify() function.

**Pros and Cons**

Here's a brief analysis of each approach:

1. **`Object.assign()`**:
	* Pros: Built-in JavaScript method, efficient, and widely supported.
	* Cons: May not work as expected if the target object is null or undefined.
2. **`jQuery.extend()`**:
	* Pros: Convenient and easy to use for jQuery developers. However, it may introduce unnecessary dependencies.
	* Cons: Only works with objects that have a `$` property (i.e., jQuery objects).
3. **`JSON.parse(JSON.stringify())`**:
	* Pros: Creates a deep copy of an object, which can be useful in certain scenarios.
	* Cons: Inefficient for large objects and may cause performance issues.

**Library Usage**

The `jQuery.extend()` method uses the jQuery library, which is a popular JavaScript library for DOM manipulation and event handling. The library provides a convenient way to extend objects with new properties.

**Special JS Features/Syntax**

There are no special JavaScript features or syntax used in this benchmark. All tests follow standard JavaScript conventions.

**Other Alternatives**

If you're interested in exploring alternative methods, here are a few options:

* `Object.create()`: Creates an object with the specified prototype.
* `Array.prototype.reduce()`: Can be used to merge objects using a custom reduction function.
* `Lodash.merge()`: A popular utility library that provides a robust way to merge objects.

These alternatives may offer different performance characteristics or use cases, but they are not directly comparable to the methods tested in this benchmark.

Related benchmarks:

Object.assign jQuery.extend (version: 0)

Comparing performance of: Object.assign vs JSON vs jQuery.extend

Created: 5 years ago by: Guest

Jump to the latest result

Object.assign

JSON

jQuery.extend

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):