Benchmark: Array concat vs spread operator vs pushdfsdfxg dfg

Tests:

Array.prototype.concat
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].concat(params);
spread operator
var params = [ "hello", true, 7 ] var other = [ 1, 2, ...params ]
Push
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].push(...params);

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

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

Let's break down the benchmark and its results.

**What is being tested?**

The benchmark is testing three different ways to concatenate (add) arrays in JavaScript:

1. `Array.prototype.concat()`: The traditional method of concatenating arrays using the `concat()` function.
2. Spread operator (`...`): The new ES6 spread operator, introduced in 2015, which allows you to expand an array into its elements.
3. `push()` with spread syntax (`[ ...params ]` inside `push()`): A more recent approach that uses the spread operator inside the `push()` function.

**Options compared**

The benchmark is comparing these three approaches for concatenating arrays. The options are:

* Traditional `concat()`
* Spread operator (`...`)
* `push()` with spread syntax

**Pros and Cons of each approach**

1. **Traditional `concat()`**:
	* Pros: Well-established, widely supported, and easy to understand.
	* Cons: Can be slower than newer approaches and may lead to array duplication when using `concat()` in a loop.
2. **Spread operator (`...`)**:
	* Pros: More efficient and concise than traditional `concat()`, reducing the chance of array duplication.
	* Cons: Requires ECMAScript 2015 or later support, which might not be available on older browsers or environments.
3. **`push()` with spread syntax**:
	* Pros: Similar to the spread operator but allows for more flexibility in assigning values to individual elements after concatenation.
	* Cons: Requires a newer JavaScript engine that supports `push()` with spread syntax.

**Library and special JS features**

There are no libraries or special JavaScript features used in this benchmark, except for:

* The spread operator (`...`), which is a new feature introduced in ECMAScript 2015.

**Other alternatives**

If you want to consider other approaches, here are some additional options that were not tested in this benchmark:

* `Array.prototype.push.apply()`: A function call-based approach to concatenating arrays.
* `Array.prototype.reduce()` and `reduceRight()`: Array methods used for reducing an array into a single value, which can be used with concatenation.

Keep in mind that these alternatives might have different performance characteristics or use cases compared to the approaches tested in this benchmark.

Related benchmarks:

Array concat vs spread operator vs pushdfsdfxg dfg (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>

Fastest: N/A

Slowest: N/A

No previous run results

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