Benchmark: Object merge vs library merge TomekTest

HTML Preparation code:

<script type='text/javascript' src='https://cdnjs.cloudflare.com/ajax/libs/immutable/3.8.2/immutable.min.js'></script>
<script type='text/javascript' src='https://cdnjs.cloudflare.com/ajax/libs/ramda/0.25.0/ramda.min.js'></script>
<script type='text/javascript' src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Tests:

Object.assign
var params = { a: "hello", b: true, c: 7 }; var other = Object.assign({}, { b: false, d: [ 1,2 ] }, params);
jQuery extend
var params = { a: "hello", b: true, c: 7 }; var other = $.extend({}, { b: false, d: [ 1,2 ] }, params);
Immutable merge
var params = Immutable.fromJS({ a: "hello", b: true, c: 7 }); var other = params.merge({ b: false, d: [ 1,2 ] });
Ramda merge
var params = { a: "hello", b: true, c: 7 }; var other = R.merge({ b: false, d: [ 1,2 ] }, params);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.assign
jQuery extend
Immutable merge
Ramda merge

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Linux; Android 12; SM-N985F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.97 Mobile Safari/537.36 OPR/71.3.3718.67322

Browser/OS: Opera Mobile 71 on Android

View result in a separate tab

Test name	Executions per second
Object.assign	1956784.4 Ops/sec
jQuery extend	1308678.6 Ops/sec
Immutable merge	424636.2 Ops/sec
Ramda merge	1803105.6 Ops/sec

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

LLMs can make mistakes. Check important info.

Measuring JavaScript performance is crucial, and MeasureThat.net provides a great platform for benchmarking various libraries and approaches.

**Benchmark Overview**

The provided JSON represents a benchmark that tests the performance of four different approaches to merge objects: Object.assign (native JavaScript), jQuery.extend (a popular jQuery utility), Immutable.merge (from the Immutable.js library), and Ramda.merge (from the Ramda functional programming library).

**Options Compared**

Here's a brief overview of each option:

1. **Object.assign**: A native JavaScript method that merges two or more objects into one, overwriting any existing properties.
2. **jQuery.extend**: A jQuery utility function that allows you to merge multiple objects into one, preserving the source order of properties.
3. **Immutable.merge**: A function from the Immutable.js library that creates a new object by merging two or more immutable objects, preserving their structure and data.
4. **Ramda.merge**: A higher-order function from the Ramda functional programming library that merges two or more objects into one, using a predictable and consistent merge strategy.

**Pros and Cons of Each Approach**

1. **Object.assign**:
	* Pros: Fast, lightweight, and widely supported (native JavaScript).
	* Cons: Can lead to unexpected behavior if not used carefully (e.g., overwriting existing properties without warning).
2. **jQuery.extend**:
	* Pros: Convenient, well-documented, and widely used in the jQuery community.
	* Cons: Adds additional overhead due to jQuery's library dependencies and can be slower than native JavaScript approaches.
3. **Immutable.merge**:
	* Pros: Preserves immutability and structure of original objects, which can lead to predictable behavior and easier debugging.
	* Cons: Can introduce significant overhead due to the creation of new immutable objects, especially for large datasets.
4. **Ramda.merge**:
	* Pros: Predictable and consistent merge strategy, which can lead to better performance and fewer surprises in complex data merging scenarios.
	* Cons: May require additional setup and learning due to its functional programming roots.

**Library and Purpose**

1. **Immutable.js**: A library for working with immutable data structures, providing a predictable and thread-safe way to manage data changes.
2. **Ramda**: A functional programming library that provides a set of higher-order functions for data manipulation and transformation.

**Special JS Features or Syntax**

None mentioned in the provided JSON.

**Other Alternatives**

If you're looking for alternative approaches to merge objects, consider:

1. **Lodash.merge**: Another popular utility library that offers various merge strategies.
2. **ES6 Object Spread Operator**: A modern JavaScript feature that allows you to create new objects by spreading existing ones.
3. **Custom implementation using JavaScript's `Object.create()` and `Object.assign()` methods**.

In conclusion, the choice of approach depends on your specific use case, performance requirements, and personal preference. MeasureThat.net provides a valuable platform for benchmarking different libraries and approaches to help you make informed decisions about your codebase.

Related benchmarks:

Object merge vs library merge TomekTest (version: 0)

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

Created: 5 years ago by: Guest

Jump to the latest result

Object.assign

jQuery extend

Immutable merge

Ramda merge

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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