Toggle navigation
MeasureThat
.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
find vs includes vs indexof
(version: 0)
Comparing performance of:
find vs includes vs indexOf
Created:
2 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var array = ['banana', 'sausage', 'jesus']
Tests:
find
array.find(f => f == 'banana' );
includes
array.includes('banana');
indexOf
array.indexOf('banana');
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
Fork
Test case name
Result
find
includes
indexOf
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/136.0.0.0 Safari/537.36
Browser/OS:
Chrome 136 on Windows
View result in a separate tab
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=605278" width="100%" height="500px"></iframe>
indexOf
71.5M/s
find
69.4M/s
includes
61.8M/s
View exact numbers
Test name
Executions per second
✓
indexOf
71,502,640 Ops/sec
find
69,417,216 Ops/sec
includes
61,756,584 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 measures the performance of three different methods to search for a specific value in an array: 1. `array.find()` 2. `array.includes()` 3. `array.indexOf()` These methods are used to find the index of the first occurrence of a specified element within an array, similar to the traditional `indexOf()` method. **Method Comparison** The three methods being compared differ in their approach and behavior: 1. **`find()`**: This method returns the first element that satisfies the provided condition (in this case, `f == 'banana'`). If no such element exists, it returns `undefined`. Unlike `includes()` and `indexOf()`, `find()` does not search the entire array; it only searches until it finds a match. 2. **`includes()`**: This method checks if an element is present in the array using a simple membership test. It iterates through the array to find the first occurrence of the specified value, returning `true` if found or `false` otherwise. 3. **`indexOf()`**: Similar to `find()`, this method returns the index of the first occurrence of the specified element within the array. **Pros and Cons** Here's a brief summary of the pros and cons of each approach: 1. **`find()`**: * Pros: more concise, easier to use with arrow functions. * Cons: may return `undefined` if no match is found, can be slower for large arrays due to early termination. 2. **`includes()`**: * Pros: simple, efficient, and widely supported. * Cons: may be slower than `indexOf()` for very large arrays, as it iterates through the array even after finding a match. 3. **`indexOf()`**: * Pros: reliable, fast, and well-established. * Cons: can be less concise and more verbose compared to `find()`, requires explicit index management. **Library Usage** None of the methods rely on external libraries, making them self-contained and easy to use with minimal setup. **Special JS Features/Syntax** None of the methods rely on special JavaScript features or syntax that would require additional explanation. They are all standard method calls and can be used without any additional context. **Alternatives** Other approaches to searching for an element in an array include: 1. **`for...of` loop**: A more traditional, explicit way to iterate through the array. 2. **`Array.prototype.forEach()`**: A callback-based approach that allows iterating through the array while executing a custom function for each element. 3. **Native `binarySearch()` method** (not shown in this benchmark): An optimized algorithm for finding an element in a sorted array. The specific choice of method ultimately depends on the desired behavior, performance characteristics, and personal preference.
Related benchmarks
IndexOf vs Includes
find vs includes
IndexOf vs Includes vs find
Comments
Confirm delete:
Do you really want to delete benchmark?