Benchmark: Test using spread or push

Tests:

Test using spread
var params = [ "hello", true, 7 ] var other = [ ...params, 3 ]
Testt using push
var params = [ "hello", true, 7 ] params.push(3)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Test using spread
Testt using 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):

LLMs can make mistakes. Check important info.

Let's dive into the world of MeasureThat.net and analyze the provided benchmark.

**Benchmark Overview**

MeasureThat.net is a platform that allows users to create and run JavaScript microbenchmarks. The goal is to compare different approaches and identify the most efficient way to achieve a specific task.

**Test Cases**

There are two test cases:

1. **"Test using spread"`**: This test case uses the spread operator (`...`) to concatenate an array.
   ```javascript
var params = ["hello", true, 7];
var other = [...params, 3];
```
   The pro of this approach is that it's concise and readable. However, some older JavaScript versions (prior to ECMAScript 2018) might not support the spread operator.

2. **"Test using push"`**: This test case uses the `push()` method to add an element to an array.
   ```javascript
var params = ["hello", true, 7];
params.push(3);
```
   The pro of this approach is that it's widely supported across older JavaScript versions.

**Library and Special JS Features**

In both test cases, there is no explicit mention of a library being used. However, the use of the spread operator (`...`) might not be compatible with very old browsers or environments.

There are also special JS features (like async/await, let const, etc.) which aren't explicitly mentioned.

**Other Considerations**

Both approaches have their own trade-offs:

*   **Readability and conciseness**: The spread operator is more concise but less readable for some developers. On the other hand, using `push()` can make the code more verbose.
*   **Performance**: Research suggests that in most cases, both methods should perform similarly well. However, for very large arrays or specific performance-critical scenarios, the chosen method might impact execution time.

**Alternatives**

For this particular benchmark, there aren't many alternatives since it's focused on comparing two simple approaches to array concatenation. However, some potential alternative benchmarks could explore other aspects of JavaScript performance, such as:

*   **Object creation vs. literal object**: Compare creating objects using the object constructor (`new Object()`) versus assigning literals to properties (e.g., `var obj = { a: 1, b: 2 };`).
*   **Array methods vs. loops**: Compare the performance of common array methods like `map()`, `filter()`, and `reduce()` against equivalent loops.
*   **Closure vs. function declaration**: Explore how different ways to declare functions (e.g., as closures or using `function` keyword) impact execution time.

Keep in mind that the choice of benchmark ultimately depends on the specific use case or performance requirement you're trying to measure.

Related benchmarks:

Test using spread or push (version: 0)

Comparing performance of: Test using spread vs Testt using push

Created: 5 years ago by: Guest

Jump to the latest result

Test using spread

Testt using 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):