Benchmark: Find vs Some vs Everya aaaaa

Script Preparation code:

var data = []
for (let i = 0; i < 5000; ++i) data.push({
    username: 'toto'
})
data.push({
    username: 'titi'
})
for (let i = 0; i < 2500; ++i) data.push({
    username: 'toto'
})

Tests:

Every
data.every(e => e.username === 'titi')
Find
data.find(e => e.username === 'titi')
Some
data.some(e => e.username === 'titi')

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Every
Find
Some

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

**Benchmark Overview**

The provided benchmark measures the performance of three different methods to find an element with a specific property in an array: `every`, `some`, and `find`. The test case generates a large array of 10,000 objects with a username field.

**Options Compared**

1. **`every(e => e.username === 'titi')`**: This method iterates over the entire array using a callback function and checks if every element meets the condition.
2. **`data.find(e => e.username === 'titi')`**: This method uses the `find()` method, which returns the first element that satisfies the condition.
3. **`data.some(e => e.username === 'titi')`**: This method uses the `some()` method, which returns a boolean indicating whether at least one element satisfies the condition.

**Pros and Cons of Each Approach**

1. **`every()`**:
	* Pros: Can be used when you need to ensure that all elements meet the condition.
	* Cons: Iterates over the entire array, which can be inefficient for large arrays. Returns `undefined` if no element meets the condition.
2. **`find()`**:
	* Pros: Returns the first matching element, making it suitable for cases where you need to find a specific value.
	* Cons: May not find all occurrences of the value if the array is sparse or has duplicates.
3. **`some()`**:
	* Pros: Faster than `every()` since it stops iterating as soon as it finds a match. Returns `true` if at least one element meets the condition.
	* Cons: Does not guarantee that all elements meet the condition, and returns `false` if no element matches.

**Library Used**

None of the methods explicitly use a library. However, the array data is generated using JavaScript's built-in `for` loop and object literal syntax.

**Special JS Features or Syntax**

The benchmark does not rely on any special JavaScript features or syntax beyond what is required to implement the three algorithms. The `every()`, `some()`, and `find()` methods are part of the ECMAScript standard.

**Other Alternatives**

In addition to these three methods, other approaches could be used to find an element with a specific property in an array:

* **Manual iteration**: Using a traditional `for` loop or `forEach` method to iterate over the array and check each element.
* **Regular expressions**: Using regular expressions to search for patterns in the array elements that match the desired condition.

Related benchmarks:

Find vs Some vs Everya aaaaa (version: 0)

Comparing performance of: Every vs Find vs Some

Created: 5 years ago by: Guest

Jump to the latest result

Every

Find

Some

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):