Benchmark: igergueguergerg - MeasureThat.net

Tests:

Spread
let array1 = [ 1, 2, 3, 4, 5 ]; let array2 = [ 6, 7, 8, 9, 10 ]; array1.push(...array2);
Apply
let array1 = [ 1, 2, 3, 4, 5 ]; let array2 = [ 6, 7, 8, 9, 10 ]; array1.push.apply(array1, array2);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Spread
Apply

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

LLMs can make mistakes. Check important info.

I'll do my best to explain the benchmark in detail.

**Benchmark Overview**

The provided benchmark measures the performance of two different methods for merging arrays in JavaScript: the spread operator (`...`) and the `apply` method.

**Benchmark Definition**

The benchmark definition is represented by a JSON object with four properties:

* `Script Preparation Code`: This property is empty, which means that no script-specific setup code is required before running the test.
* `Html Preparation Code`: This property is also empty, indicating that no HTML-related setup is needed for this test.
* `Name` and `Description`: These properties contain a unique name and description for the benchmark, respectively.

**Individual Test Cases**

There are two individual test cases in the benchmark:

1. **Spread**: The first test case measures the performance of using the spread operator (`...`) to merge two arrays:
```javascript
let array1 = [ 1, 2, 3, 4, 5 ];
let array2 = [ 6, 7, 8, 9, 10 ];
array1.push(...array2);
```
This test case is likely used to measure the performance of the spread operator in JavaScript.

2. **Apply**: The second test case measures the performance of using the `apply` method to merge two arrays:
```javascript
let array1 = [ 1, 2, 3, 4, 5 ];
let array2 = [ 6, 7, 8, 9, 10 ];
array1.push.apply(array1, array2);
```
This test case is likely used to measure the performance of the `apply` method in JavaScript.

**Pros and Cons**

Here's a brief analysis of the pros and cons of each approach:

* **Spread Operator (`...`)**:
	+ Pros: The spread operator is a modern and concise way to merge arrays. It's also relatively fast, as it uses a built-in function.
	+ Cons: The spread operator may not be supported in older browsers or versions of JavaScript.
* **Apply Method**:
	+ Pros: The `apply` method has been available in JavaScript for a long time and is widely supported across different browsers and versions.
	+ Cons: The `apply` method can be less readable and less efficient than the spread operator, especially for large arrays.

**Libraries and Special Features**

Neither of these test cases uses any libraries or special features. They only rely on standard JavaScript syntax.

**Other Alternatives**

If you're interested in alternative ways to merge arrays, here are a few options:

* Using `concat()`: Instead of using the spread operator or `apply`, you can use the `concat()` method to merge two arrays: `array1.concat(array2)`.
* Using `reduce()`: You can also use the `reduce()` method to merge two arrays by accumulating the elements into a single array.

However, these alternatives may have different performance characteristics and are not as concise or readable as using the spread operator or `apply`.

**Benchmark Results**

The latest benchmark results show that Chrome 118 on Windows Desktop is executing the spread operator approximately 2.66 times faster than the `apply` method for merging two arrays of equal size.

Keep in mind that these results may vary depending on the specific use case, array sizes, and other factors.

Related benchmarks:

igergueguergerg (version: 0)

Comparing performance of: Spread vs Apply

Created: 2 years ago by: Guest

Jump to the latest result

Spread

Apply

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):