Toggle navigation
MeasureThat
.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
find vs findIndex (Array prototype methods) 22
(version: 0)
Measuring which is faster
Comparing performance of:
Array.prototype.find vs Array.prototype.findIndex
Created:
5 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var arr = []; var i = 0; while (i <= 1E5) arr[i] = i++;
Tests:
Array.prototype.find
const item = !!arr.find(item => item == 1E5);
Array.prototype.findIndex
const index = arr.findIndex(item => item == 1E5) > -1;
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
Array.prototype.find
Array.prototype.findIndex
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one month ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/148.0.0.0 Safari/537.36
Browser/OS:
Chrome 148 on Mac OS X 10.15.7
View result in a separate tab
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=629630" width="100%" height="500px"></iframe>
Array.prototype.find
997/s
Array.prototype.findIndex
952/s
View exact numbers
Test name
Executions per second
✓
Array.prototype.find
997 Ops/sec
Array.prototype.findIndex
952 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark definition and test cases to understand what's being tested. **Benchmark Definition:** The benchmark is testing two methods on the Array prototype: 1. `find`: Returns the value of the first element in an array that satisfies the provided testing function. 2. `findIndex`: Returns the index of the first element in an array that satisfies the provided testing function, or -1 if no element satisfies it. **Options Compared:** The benchmark is comparing the performance of these two methods: * `Array.prototype.find` * `Array.prototype.findIndex` **Pros and Cons of Different Approaches:** Both methods have their pros and cons: 1. `find`: * Pros: + More intuitive and readable, as it searches for a specific value. + Can be used with a callback function that doesn't necessarily return a boolean value. * Cons: + Returns the first element found, which may not be what's expected if multiple elements match. 2. `findIndex`: * Pros: + Returns an index, which can be useful for iterating over the array. + More accurate than `find`, as it returns -1 if no element matches, whereas `find` returns the first matched element. * Cons: + Less intuitive and readable, as it requires understanding of indexing. **Library:** None are used in this benchmark. **Special JS Feature/Syntax:** The testing function for both methods uses a shorthand method to check if an element is equal to 1E5 (`item == 1E5`). This syntax is valid JavaScript but is more commonly used in strict mode or with explicit type checking. In standard JavaScript, it's written as `item === 1E5` or `item == 1E5` (note the loose equality). **Other Alternatives:** For these specific methods, other alternatives are: * Instead of using `find` and `findIndex`, you could use other methods like `some()` or `every()`. * If performance is critical, you might consider using optimized array methods like `Array.prototype.some()` or `Array.prototype.every()`, which can be faster for large arrays. * For iterating over an array, you could also use a simple `for` loop. Keep in mind that the best approach depends on your specific use case and requirements.
Related benchmarks
find vs findIndex (Array prototype methods)
find vs findIndex (Array prototype methods) stop at first found
find vs indexOf (Array prototype methods)
find vs findIndex (Array prototype methods) - using objects
Comments
Confirm delete:
Do you really want to delete benchmark?