Benchmark: spread vs push test1

Tests:

spread operator
let params = [ "hello", true, 7 ]; params = [...params, {test: 'hello'}];
Push
const params = [ "hello", true, 7 ]; params.push({test: 'hello'});

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

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark definition and test cases to understand what is being tested.

**Benchmark Definition**

The benchmark definition provides two scripts for comparison:

1. The first script uses the new ES6 spread operator (`...`) to add an object to an existing array: `let params = [ "hello", true, 7 ]; params = [...params, {test: 'hello'}];`.
2. The second script uses the traditional `push` method to add an object to an existing array: `const params = [ "hello", true, 7 ]; params.push({test: 'hello'});`.

**Options Compared**

The benchmark is comparing two approaches:

1. **Spread Operator (`...`)**: This approach uses the spread operator to create a new array by copying the original elements and adding the new element.
2. **Traditional `push` Method**: This approach uses the `push` method to add a new element to the end of the existing array.

**Pros and Cons**

Here are some pros and cons of each approach:

* **Spread Operator (`...`)**
	+ Pros:
		- Creates a new array, which can be more efficient in terms of memory allocation.
		- Avoids modifying the original array.
	- Cons:
		- Can be slower than using `push` because it involves creating a new array.
		- May incur additional overhead due to the syntax.
* **Traditional `push` Method**
	+ Pros:
		- Faster because it only involves adding an element to the existing array.
		- Less memory allocation overhead compared to spread operator.
	+ Cons:
		- Modifies the original array, which can be undesirable in some cases.

**Library Usage**

In this benchmark, there are no explicit library references mentioned. However, if we consider the `Array.prototype.push` method, it is a built-in JavaScript method that belongs to the ECMAScript standard.

**Special JS Feature or Syntax**

There are no special features or syntaxes used in these benchmarks, such as async/await, promise-based code, or advanced JavaScript concepts like Closures or Higher-Order Functions. The focus is on comparing two basic array manipulation techniques.

**Other Alternatives**

If the benchmark authors wanted to explore alternative approaches, they could consider:

1. Using a library like Lodash, which provides utility functions for working with arrays.
2. Comparing other array manipulation methods, such as `concat` or `slice`.
3. Adding more complex scenarios, like handling edge cases (e.g., null or undefined elements) or using multiple data structures (e.g., objects instead of arrays).
4. Incorporating modern JavaScript features like `map`, `filter`, or `reduce` to compare performance with traditional array manipulation techniques.

I hope this explanation helps! Let me know if you have any further questions.

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.82 Safari/537.36

Browser/OS: Chrome 89 on Windows

View result in a separate tab

Test name	Executions per second
spread operator	34230752.0 Ops/sec
Push	57047948.0 Ops/sec

Related benchmarks:

spread vs push test1 (version: 0)

Compare the new ES6 spread operator with the traditional 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>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):