Benchmark: Push vs Spread 4

Script Preparation code:

var arr = [1, 2, 3, 'hi', 'ho', false, true, null, true, false, 0, 1];
var cases = [123, 'hello', false, null];

Tests:

Push
for(let i = 0; i < cases.length; i++) { arr.push(cases[i]); }
Spread
for(let i = 0; i < cases.length; i++) { [...arr, cases[i]]; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Push
Spread

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.

Let's dive into the world of MeasureThat.net and explore what's being tested in this benchmark.

**Benchmark Definition**

The benchmark is defined by two test cases:

1. **Push**: This test case uses a simple `for` loop to push elements from an array (`cases`) onto another array (`arr`). The code is:
```javascript
for(let i = 0; i < cases.length; i++) {
    arr.push(cases[i]);
}
```
2. **Spread**: This test case uses the spread operator (`...`) to concatenate `arr` with the elements from `cases`. The code is:
```javascript
for(let i = 0; i < cases.length; i++) {
    [arr, cases[i]];
}
```
**Options Compared**

The two test cases compare the performance of:

* **Push**: Using the `push()` method to add elements to an array.
* **Spread**: Using the spread operator (`...`) to concatenate arrays.

**Pros and Cons**

Here are some pros and cons for each approach:

**Push**

Pros:

* Easy to understand and implement
* Most JavaScript developers are familiar with this method

Cons:

* Can be slower than using the spread operator, especially for large arrays

**Spread**

Pros:

* Can be faster than `push()`, especially for large arrays
* Allows for more concise code

Cons:

* May require additional memory allocations (depending on the browser's implementation)
* Less familiar to some developers who are not experienced with modern JavaScript features

**Library/Functionality**

The benchmark does not use any external libraries. However, it uses a simple array and `push()` method, which is built-in to most JavaScript implementations.

**Special JS Features/Syntax**

There are no special JavaScript features or syntax used in this benchmark that require specific browser support or interpretations.

**Other Alternatives**

If you're interested in exploring alternative approaches, here are some other methods you could use:

* **Array.prototype.unshift()**: This method adds an element to the beginning of an array. It may be faster than `push()` for small arrays.
* **Array.prototype.splice()**: This method inserts an element at a specific position in an array. It may be faster than `push()` for large arrays.
* **Using a data structure like a queue or stack**: These data structures are optimized for adding and removing elements from the beginning or end of the collection, respectively.

Keep in mind that these alternatives may have different performance characteristics and trade-offs compared to the original `push()` method.

Related benchmarks:

Push vs Spread 4 (version: 0)

Comparing performance of: Push vs Spread

Created: 3 years ago by: Guest

Jump to the latest result

Push

Spread

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):