Their performance characteristics are probably the same, assuming you want to know wether to use find or some in a specific case. They are both lazy in the same way.
The difference is in the output. find will return the value, some will return a boolean.
I checked the source (1.4.4). some and find both use some (=== any) internally. So even if a native implementation of some is used it benefits both find and some.
Medium
medium.com › poka-techblog › simplify-your-javascript-use-some-and-find-f9fb9826ddfd
Simplify your JavaScript – Use .some() and .find() | by Etienne Talbot | poka-techblog | Medium
September 5, 2019 - As was pointed out in the comments, know that you can also check if every value of the array matches your condition by using .every() . It works exactly like .some(), but will return true only if every occurence match. This array method does exactly what it says: it finds what you’re looking for.
Top answer 1 of 2
42
Their performance characteristics are probably the same, assuming you want to know wether to use find or some in a specific case. They are both lazy in the same way.
The difference is in the output. find will return the value, some will return a boolean.
I checked the source (1.4.4). some and find both use some (=== any) internally. So even if a native implementation of some is used it benefits both find and some.
2 of 2
4
If you look into it's source, you will find that those two are identical, _.find actually calls _.some.
_.find = _.detect = function(obj, iterator, context) {
var result;
any(obj, function(value, index, list) {
if (iterator.call(context, value, index, list)) {
result = value;
return true;
}
});
return result;
};
var any = _.some = _.any = function(obj, iterator, context) {
iterator || (iterator = _.identity);
var result = false;
if (obj == null) return result;
if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
each(obj, function(value, index, list) {
if (result || (result = iterator.call(context, value, index, list))) return breaker;
});
return !!result;
};
Videos
01:45
JavaScript Tip: .includes() vs .some() – Find values & objects ...
.some() vs .find() in Javascript || some() in Js || find() in js ...
06:03
Array Filter vs. Array Find in JavaScript - YouTube
JavaScript find vs some
02:37
Quick Guide: JavaScript Array Includes Method in 2 Minutes - YouTube
MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › Array › some
Array.prototype.some() - JavaScript | MDN
The some() method of Array instances returns true if it finds an element in the array that satisfies the provided testing function. Otherwise, it returns false.
LinkedIn
linkedin.com › pulse › understanding-distinction-arraysome-vs-arrayfind-shuaibu-muhammad-20j9f
Understanding the Distinction: Array.some() vs. Array.find() in JavaScript
February 26, 2024 - Array.find() for Specific Values: On the other hand, Array.find() is ideal when you're searching for a particular element in an array based on a condition and need the value of that element.
Reddit
reddit.com › r/learnjavascript › what is the correct situation to use array.find() vs. array.includes vs. array.some() ?
r/learnjavascript on Reddit: What is the correct situation to use array.find() vs. array.includes vs. array.some() ?
September 14, 2019 -
I understand how each of these methods work, but they all seem to have similar functions to one another, and I'm not sure as to what situation might call for what method.
Top answer 1 of 3
35
const value = arr.find(test) — return the value that passes your test function for when you need to run a test to determine which value you want const bool = arr.some(test) — return true if at least one element passes your test for when you need to see if anything in your array passes your test function const bool = arr.includes(value) — check if a value exists in an array for when you already know the value and you want to check if the array has a copy
2 of 3
1
Use find when you actually need the first element that matches to be returned. Sure you could check to see if the result of find was not undefined and in that way it's similar to some. But sometimes you want the array element returned and sometimes you JUST need to know if it exists. includes is actually pretty different from both of these and is useful for arrays with simple values. Most of the time in production code I deal with arrays of objects and want to pass a function as a truth test to really dig into the contents of the object. If it's a simple array of strings or numbers then sure includes might be all you need.
Quora
quora.com › What-is-the-correct-situation-to-use-array-find-vs-array-includes-vs-array-some-in-JavaScript
What is the correct situation to use array.find() vs. array.includes vs. array.some() in JavaScript? - Quora
Answer (1 of 2): includes: this is syntactic sugar for the old common way of writing [code]myArray.indexOf('some value') !== -1 [/code]Which can now be written as [code]myArray.includes('some value') [/code]It simply checks to see if some value exists in the array and returns true if it does. ...
MeasureThat
measurethat.net › Benchmarks › Show › 4337 › 0 › array-find-vs-some
Benchmark: array find vs some - MeasureThat.net
JavaScript benchmarks, JavaScript performance playground. Measure performance accross different browsers. javascript benchmarks online.
Medium
medium.com › @obsidianart › javascript-array-methods-find-some-and-findindex-explained-6dbd3adbb33e
JavaScript array methods: find, some, and findIndex explained | by Obsidianart | Medium
August 4, 2024 - Well, JavaScript is a language ... easier to read in the future. But if you care about the actual element, you can use find to get the element itself, or undefined if it doesn't exist....
MeasureThat
measurethat.net › Benchmarks › Show › 5921 › 0 › some-vs-find
Benchmark: Some vs Find - MeasureThat.net
JavaScript benchmarks, JavaScript performance playground. Measure performance accross different browsers. javascript benchmarks online.
LinkedIn
linkedin.com › pulse › java-script-bits-array-methods-some-vs-every-
Java Script Bits - Array Methods - some vs every vs find vs filter
August 12, 2022 - It iterates through the array to find apple, and as soon as it finds one, it returns true or if there is no apple in the array, it returns false. fruitBasket1.some( fruit => console.log(fruit); return fruit === ‘apple’ }) Will output below apple true // final return value fruitBasket3.some( fruit => { console.log(fruit); return fruit === ‘apple’ }) Will output below mango orange orange orange false // final return value
W3Schools
w3schools.com › jsref › jsref_some.asp
JavaScript Array some() Method
HTML CSS JAVASCRIPT SQL PYTHON JAVA PHP HOW TO W3.CSS C C++ C# BOOTSTRAP REACT MYSQL JQUERY EXCEL XML DJANGO NUMPY PANDAS NODEJS DSA TYPESCRIPT ANGULAR ANGULARJS GIT POSTGRESQL MONGODB ASP AI R GO KOTLIN SWIFT SASS VUE GEN AI SCIPY AWS CYBERSECURITY DATA SCIENCE INTRO TO PROGRAMMING INTRO TO HTML & CSS BASH RUST ... Array[ ] Array( ) at() concat() constructor copyWithin() entries() every() fill() filter() find() findIndex() findLast() findLastIndex() flat() flatMap() forEach() from() includes() indexOf() isArray() join() keys() lastIndexOf() length map() of() pop() prototype push() reduce() reduceRight() rest (...) reverse() shift() slice() some() sort() splice() spread (...) toReversed() toSorted() toSpliced() toString() unshift() values() valueOf() with() JS Boolean
Medium
acharyan.medium.com › javascript-array-fundamentals-find-vs-filter-vs-findindex-vs-some-vs-every-905273dde9fa
Search in Javascript Array : Find Vs Filter Vs FindIndex Vs Some Vs Every | Medium
August 30, 2021 - Use case 3: FindIndex : Use array ‘findIndex’ method to traverse through the array to get an integer result of ‘index number’ when the condition matches for any entity for first time else returns ‘-1’. Loop executes only till the first match. CallbackFn is run even for indexes with unassigned values. ... Use case 4: Some : Use array ‘some’ method to traverse through the array to get a result of boolean true if the condition matches for any entity else returns false.
Reddit
reddit.com › r/javascript › simplify your javascript – use .some() and .find()
r/javascript on Reddit: Simplify your JavaScript – Use .some() and .find()
September 4, 2019 - Wasn’t aware of some(). Useful function that I’ve been needlessly implementing myself with reduce and/or filter ... It's great. I'm surprised that developers don't just look up the array functions—just once in their life—because there are literally 27 very useful functions in there, plus .copyWithin and .flatMap. ... I looked them all up when I started with JavaScript in 1998.
Matcha
matcha.fyi › array-methods-javascript
Array Methods: filter, find, map, reduce, every, and some in ...
Please click the circles as they appear · Please verify you're not a robot
GeeksforGeeks
geeksforgeeks.org › what-is-the-difference-between-every-and-some-methods-in-javascript
What is the difference between every() and some() methods in JavaScript ? | GeeksforGeeks
December 18, 2023 - The Array.every() method in JavaScript is used to check whether all the elements of the array satisfy the given condition or not. The output will be false if even one value does not satisfy the element, else it will return true, and it opposes the some() function.
CoderPad
coderpad.io › blog › development › javascript-some-method
JavaScript .some() Method: When and How to Use It - CoderPad
June 5, 2023 - The .some() method is built on the same foundation as that of the methods .every() and .find().
MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › Array › find
Array.prototype.find() - JavaScript | MDN
If you need to find if any element satisfies the provided testing function, use some().
Educative
educative.io › answers › filter-vs-find-javascript-array-methods
filter vs. find: JavaScript array methods
The JavaScript array method find returns the first matching element, while the array method filter returns an array of all matching elements.
JavaScript in Plain English
javascript.plainenglish.io › find-findindex-some-and-every-array-methods-you-should-know-ad4a89ecd8fc
🔍 Find, FindIndex, Some, and Every — Array Methods You Should Know | by Ash Gole | JavaScript in Plain English
July 3, 2025 - This blog explains how find(), findIndex(), some(), and every() work in JavaScript arrays. With easy code examples and real-world uses…