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array find vs some speed test
(version: 0)
Benchmark.js
Compare the new ES6 spread operator with the traditional concat() method
Comparing performance of:
array find vs array some
Created:
5 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var array = []; for(let i = 0; i<100000; i++){ array.push(`item-${i}`); }
Tests:
array find
var b = array.find(item => item === 'item-58900');
array some
var b = array.some(item => item === 'item-58900');
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
array find
array some
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Mobile Safari/537.36
Browser/OS:
Chrome Mobile 121 on Android
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=506148" width="100%" height="500px"></iframe>
array find
356/s
array some
346/s
View exact numbers
Test name
Executions per second
✓
array find
356 Ops/sec
array some
346 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what's being tested. **Benchmark Overview** The benchmark compares two approaches to find an element in an array: `Array.prototype.find()` (ES6 spread operator) and `Array.prototype.some()`. The goal is to determine which method is faster for finding a specific element in a large array. **Options Being Compared** There are two options being compared: 1. **`Array.prototype.find()`**: This method returns the first element in the array that satisfies the provided condition. In this case, it's used to find an element with a specific string value (`'item-58900'`). 2. **`Array.prototype.some()`**: This method returns `true` if at least one element in the array satisfies the provided condition. It's used to check if any element matches the target string value. **Pros and Cons of Each Approach** 1. **`Array.prototype.find()`**: * Pros: Returns the exact element you're looking for, which can be useful for finding a specific item. It's also generally considered more readable and efficient than `some()`. * Cons: Throws an error if no elements match the condition, which might not be desirable in all cases. 2. **`Array.prototype.some()`**: * Pros: Returns `true` as soon as it finds a matching element, making it potentially faster for large arrays with many matches. * Cons: Returns `false` when no elements match, which can lead to unnecessary iterations. **Library and Special JS Features** In this benchmark, the following library is used: 1. **None**: There are no external libraries required for these tests. No special JavaScript features are being tested in this benchmark. The focus is solely on the comparison of `find()` and `some()` methods. **Other Alternatives** If you're interested in alternative approaches to find an element in an array, consider the following: 1. **`Array.prototype.indexOf()`**: This method returns the index of the first occurrence of the specified value. If no match is found, it returns `-1`. 2. **Using a `for...of` loop**: You can use a traditional loop to iterate over the array and check each element against the target value. **Conclusion** In summary, this benchmark compares two methods for finding an element in an array: `Array.prototype.find()` (ES6 spread operator) and `Array.prototype.some()`. The results will help determine which method is faster and more suitable for your specific use case.
Related benchmarks
Array.prototype.concat vs spread operator
Array.prototype.concat vs spread operator on large array
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