Benchmark: set.add vs array.push maan

Script Preparation code:

var a = [
  'height',
  'width',
  'maxHeight',
  'maxWidth',
  'maxHeight',
  'minWidth',
  'color',
  'bg',
  'backgroundColor',
  'opacity',
  'm',
  'mt',
  'mb',
  'mr',
  'mr',
  'mx',
  'my',
  'p',
  'pt',
  'pb',
  'pr',
  'pl',
  'px',
  'py',
  'border',
  'boxShadow',
  'flex',
  'verticalAlign',
  'textAlign',
  'overflow',
  'display',
  'cursor'
];
var b = new Set(a)

Tests:

push
return a.push('maan')
add
return b.add('maan')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
push
add

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.84 Safari/537.36 HBPC/12.1.3.306

Browser/OS: Chrome 99 on Windows

View result in a separate tab

Test name	Executions per second
push	12604732.0 Ops/sec
add	12696705.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the explanation of the provided JSON benchmark definition.

**What is tested?**

The main comparison being made in this benchmark is between two approaches for adding an element to an array: `array.push()` and `Set.add()`. The test cases are designed to measure the performance difference between these two methods.

**Options compared:**

1. **`array.push()`**: This method adds a new element to the end of an array and returns the length of the updated array.
2. **`Set.add()`**: This method adds a new element to a Set data structure, which is an unordered collection of unique values.

**Pros and Cons:**

* `array.push()`: Pros:
	+ Fast and efficient for large arrays.
	+ Can be more convenient for certain use cases where you need to append multiple elements.
* Cons:
	+ Can lead to inefficient memory allocation if the array grows rapidly.
	+ May have performance issues with very large arrays due to JavaScript's internal implementation details.
* `Set.add()`: Pros:
	+ Fast and efficient for small to medium-sized sets.
	+ Can be more convenient for certain use cases where you need to add unique elements.
* Cons:
	+ May lead to slower performance for very large sets due to the overhead of managing the underlying data structure.

**Library:**

In this benchmark, `Set` is a built-in JavaScript library. A Set is a data structure that stores unique values and provides efficient methods for adding, removing, and searching elements.

**Special JS feature/syntax:**

None mentioned in the provided JSON definitions.

**Other alternatives:**

If you need to implement an array with similar performance characteristics to `array.push()`, you might consider using:

1. **`Array.prototype.concat()`**: This method concatenates one or more arrays together and returns a new array.
2. **`Array.prototype.splice()`**: This method inserts, removes, or replaces elements in an array.

Keep in mind that these alternatives may not offer the same performance characteristics as `array.push()`, but they can provide different use cases for working with arrays.

It's worth noting that modern JavaScript engines often optimize `array.push()` to be more efficient than other approaches. However, this benchmark is still useful for comparing the performance of different methods in a controlled environment.

Related benchmarks:

set.add vs array.push maan (version: 0)

Comparing performance of: push vs add

Created: one year ago by: Guest

Jump to the latest result

push

add

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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