Benchmark: Array concat vs spread operator vs push (forEach)sdgsdgfsdg

Tests:

spread operator
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ]; other.push(...params);
Push
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ]; other.forEach((item) => { other.push(item); });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
spread operator
Push

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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Let's break down the benchmark and explain what's being tested.

**Benchmark Overview**

The benchmark is designed to compare three different approaches for concatenating or pushing elements into an array:

1. The new ES6 spread operator (`...`)
2. The traditional `concat()` method
3. Using `forEach` with a callback function to push each element into the array

**Options Compared**

The two main options being compared are:

* Spread operator (`...`): This is a new syntax introduced in ES6 that allows you to expand an array or object into multiple arguments.
* Traditional `concat()` method: This is a built-in method that concatenates two or more arrays.
* Push with `forEach`: This approach uses the `forEach` method to iterate over each element in the original array and pushes it into the target array.

**Pros and Cons of Each Approach**

1. **Spread Operator (`...`)**:
	* Pros: Efficient, concise, and easy to read. It's also more memory-efficient than concatenating arrays using `+`.
	* Cons: Requires ES6 support, which might not be available in older browsers or environments.
2. **Traditional `concat()` method**:
	* Pros: Widely supported across different browsers and environments. It's also a built-in method, so no additional libraries are needed.
	* Cons: Less efficient than the spread operator and can lead to memory issues if used extensively.
3. **Push with `forEach`**:
	* Pros: Also widely supported, but it can be slower and less readable than the spread operator.
	* Cons: Requires a callback function, which can make the code harder to read and maintain.

**Library and Special JS Features**

None of these approaches rely on any specific libraries or special JavaScript features beyond what's built into modern browsers. However, the benchmark does assume ES6 support for the spread operator.

**Benchmark Preparation Code and Individual Test Cases**

The provided JSON includes two individual test cases:

1. The first test case uses the spread operator (`...`) to push elements from an array `params` into another array `other`.
2. The second test case uses the traditional `concat()` method and a callback function with `forEach` to achieve the same result as the spread operator.

**Other Alternatives**

If you're looking for alternative approaches, you might consider:

* Using `Array.prototype.reduce()` instead of `push()` or `concat()`.
* Utilizing modern array methods like `flat()`, `map()`, and `filter()` to concatenate or manipulate arrays.
* Using a library like Lodash, which provides various utility functions for working with arrays.

Keep in mind that the choice of approach ultimately depends on your specific use case, performance requirements, and personal preference.

Related benchmarks:

Array concat vs spread operator vs push (forEach)sdgsdgfsdg (version: 0)

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

Comparing performance of: spread operator vs Push

Created: 3 years ago by: Guest

Jump to the latest result

spread operator

Push

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):