Benchmark: push vs spread 24

Script Preparation code:

const sumArray = [];

/**const asd0 = ["asdasdasdasd"];
const asd1 = [{asd: 234 }, "0dfsdt34^45    345345435", 345345, "sdfkgsdfékgmsdéflmg sdélfgm"];
const asd2 = [23452345 + 2, true, false];
const asd4 = ["asdasdasdafdgsdf dfg df sdfgsdfasd  r", "asddsa"];
const asd8 = [[4, 8, 15, 16, 23, 42], {4: 8, 15: 16, 23: 42 }, {4: "8", 15: "16", 23: "42" }];

sumArray = [...asd0, ...asd1, ...asd2, ...asd3, ...asd4, ...asd8];**/

sumArray.push("asdasdasdasd");
sumArray.push({asd: 234 });
sumArray.push("0dfsdt34^45    345345435");
sumArray.push(345345);
sumArray.push("sdfkgsdfékgmsdéflmg sdélfgm");
sumArray.push(23452345 + 2);
sumArray.push("asdasdasdafdgsdf dfg df sdfgsdfasd  r");
sumArray.push(true);
sumArray.push("asddsa");
sumArray.push([4, 8, 15, 16, 23, 42]);
sumArray.push({4: 8, 15: 16, 23: 42 });
sumArray.push({4: "8", 15: "16", 23: "42" });
sumArray.push(false);

Tests:

js test
2
js test 2
4

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
js test
js test 2

Fastest: N/A

Slowest: N/A

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

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Let's break down the provided JSON and explain what's being tested.

**Benchmark Definition**

The `push vs spread` benchmark is testing two different approaches to adding elements to an array:

1. **`.push()` method**: The traditional way of adding elements to an array by calling the `.push()` method.
2. **Spread operator (`...`)**: A more modern approach using the spread operator to add elements to an array.

**What's being tested?**

The benchmark is comparing the performance of these two approaches on a large array containing various data types, including strings, numbers, booleans, and objects.

**Options compared**

Two options are being compared:

1. **`.push()` method**: The traditional way of adding elements to an array.
2. **Spread operator (`...`)**: A more modern approach using the spread operator to add elements to an array.

**Pros and Cons**

* `.push()` method:
	+ Pros: Widely supported, easy to use, and efficient for small arrays.
	+ Cons: Can be slower than the spread operator for large arrays due to the overhead of function calls.
* Spread operator (`...`):
	+ Pros: Modern, concise, and efficient for large arrays.
	+ Cons: May not be supported in older browsers or environments.

**Library and special JS features**

The benchmark uses the `JavaScript Array` class and does not rely on any specific libraries. However, it's worth noting that the spread operator is a relatively modern feature introduced in ECMAScript 2015 (ES6).

**Other considerations**

When choosing between `.push()` and the spread operator, consider the size of your array and the performance requirements of your application.

If you need to add a small number of elements to an array, `.push()` might be sufficient. However, if you're working with large arrays or need to perform many additions, the spread operator might be a better choice due to its efficiency and modernity.

**Alternatives**

Other alternatives for adding elements to an array include:

* `unshift()`: Adds elements to the beginning of an array.
* `concat()`: Returns a new array by concatenating multiple arrays or iterables.
* `Array.prototype.reduce()`: Reduces an array to a single value by accumulating the results.

Each of these alternatives has its own trade-offs and use cases, and the choice ultimately depends on the specific requirements of your application.

Related benchmarks:

push vs spread 24 (version: 0)

Comparing performance of: js test vs js test 2

Created: 4 years ago by: Guest

Jump to the latest result

js test

js test 2

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):