Benchmark: My Own Test Push, concat , spred.

Tests:

Array.prototype.concat
var params = [ {}, {},{} ]; var other = params.concat({});
spread operator
var params = [ {}, {},{} ]; var other = [ ...params, {} ]
Push
var params = [ {}, {},{} ]; params.push({});

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array.prototype.concat
spread operator
Push

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):

LLMs can make mistakes. Check important info.

Let's dive into the benchmark and explain what's being tested.

**Benchmark Definition**

The benchmark is designed to compare three different approaches for modifying an array in JavaScript:

1. The traditional `concat()` method
2. The spread operator (`...`)
3. The `push()` method

The benchmark aims to measure the performance of each approach, specifically the number of executions per second.

**Options Compared**

We have two main options being compared:

* **Traditional Concat**: Using the `concat()` method to add an element to the end of an array.
* **Spread Operator**: Using the spread operator (`...`) to create a new array with the original elements and additional elements.
* **Push**: Using the `push()` method to add an element to the end of an array.

**Pros and Cons**

Here are some pros and cons for each approach:

* **Traditional Concat**:
	+ Pros: Simple, widely supported, and easy to use.
	+ Cons: Can lead to performance issues if the array is large or frequently modified.
* **Spread Operator**:
	+ Pros: Modern, efficient, and concise. Reduces the need for explicit array copying.
	+ Cons: May not be as well-supported in older browsers or versions of JavaScript.
* **Push**:
	+ Pros: Simple, fast, and widely supported. Can lead to fewer unnecessary copies of data.
	+ Cons: May require more manual management of array length and bounds.

**Library Usage**

None of the benchmark's test cases explicitly use any libraries. However, it's worth noting that `concat()` is a built-in method on arrays in JavaScript, while `push()` is also a built-in method. The spread operator (`...`) was introduced in ECMAScript 2015 (ES6) and is now widely supported.

**Special JS Feature or Syntax**

The benchmark uses the spread operator (`...`), which was introduced in ES6 as a new syntax for creating arrays with multiple elements.

**Other Alternatives**

If we were to consider alternative approaches, some additional options could be:

* Using `array.prototype.splice()` instead of `concat()`
* Using a library like Lodash or Ramda for array operations
* Using a different data structure, such as an object or a linked list

However, these alternatives are not part of the benchmark's original scope and would require additional modifications to the test cases.

In summary, the benchmark provides a straightforward comparison between three approaches for modifying arrays in JavaScript. The results can help developers understand the performance characteristics of each approach and make informed decisions about which one to use depending on their specific requirements.

Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36

Browser/OS: Chrome 72 on Windows

View result in a separate tab

Test name	Executions per second
Array.prototype.concat	2504951.2 Ops/sec
spread operator	8992686.0 Ops/sec
Push	11204234.0 Ops/sec

Related benchmarks:

My Own Test Push, concat , spred. (version: 0)

Compare the new ES6 spread operator with the traditional concat() method and push

Comparing performance of: Array.prototype.concat vs spread operator vs Push

Created: 5 years ago by: Guest

Jump to the latest result

Array.prototype.concat

spread operator

Push

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):