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Some vs. Filter vs. indexOf vs. Includes vs. Find - fixed
(version: 0)
Correct version of the https://www.measurethat.net/Benchmarks/Show/9045/0/some-vs-filter-vs-indexof-vs-includes-vs-find benchmark
Comparing performance of:
Array.some vs Array.filter vs Array.indexOf vs Array.includes vs Array.find
Created:
4 years ago
by:
Guest
Jump to the latest result
Script Preparation code:
var tempResult = false; var arr = []; for (var i = 0; i < 10000; i++) { arr.push(Math.random()); }
Tests:
Array.some
var tempResult = !!arr.some(v => v === Math.random());
Array.filter
var tempResult = !!arr.filter(v => v === Math.random());
Array.indexOf
var tempResult = !!arr.indexOf(Math.random()) !== -1 ;
Array.includes
var tempResult = !!arr.includes(Math.random());
Array.find
var tempResult = !!arr.find(v => v === Math.random());
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (5)
Previous results
Fork
Test case name
Result
Array.some
Array.filter
Array.indexOf
Array.includes
Array.find
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
gemma2:9b
, generated one year ago):
This benchmark compares the performance of five different methods for finding a specific value within an array in JavaScript: * **`Array.some()`:** Checks if *at least one* element in the array satisfies a given condition. * **`Array.filter()`:** Creates a *new* array containing only elements that satisfy a given condition. * **`Array.indexOf()`:** Returns the index of the first occurrence of a given value, or -1 if not found. * **`Array.includes()`:** Returns true if the array contains a given value, otherwise false. * **`Array.find()`:** Returns the *first* element in an array that satisfies a given condition. **Pros and Cons:** | Method | Pros | Cons | |---------------|-------------------------------------------------|----------------------------------------------| | `some()` | Simple to use, returns true if *any* match found | Doesn't return the matched value | | `filter()` | Returns a new array with filtered elements | Can be less performant than other methods for single value searches | | `indexOf()` | Efficient for finding the index of a single value | Only returns the index of the *first* occurrence | | `includes()` | Simple, returns true/false if value is present | Doesn't return the matched value | | `find()` | Returns the *first* matching element | Can be less performant than other methods for single value searches | **Considerations:** * **Use case:** If you need to find a specific value and its index, `indexOf()` is usually the best choice. * **Return value:** If you need to see all elements that match a condition, use `filter()`. * **Performance:** For single-value searches, `indexOf()` and `includes()` are generally the fastest methods. **Other Alternatives:** * **Manual Iteration:** Looping through the array yourself can be less efficient but offers more control. Let me know if you'd like a deeper dive into any specific aspect of this benchmark!
Related benchmarks:
Some vs. Filter vs. indexOf vs. Find
Some vs Filter vs indexOf vs Includes vs Find
Some vs. Filter vs. findIndex vs find
Some vs. Filter with pop() vs. indexOf vs. Includes vs. Find
Some vs. Filter vs. indexOf vs. Includes vs. Find with fix
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