The find() method executes a function for each array element. The find() method returns undefined if no elements are found. The find() method does not execute the function for empty elements.

Mar 13, 2025 · The find() method of Array instances returns the first element in the provided array that satisfies the provided testing function. If no values satisfy the testing function, undefined is returned. If you need the index of the found element in the array, use findIndex() .

In modern browsers which follow the ECMAScript 2016 (ES7) standard, you can use the function Array.prototype.includes, which makes it way more easier to check if an item is present in an array: const array = [1, 2, 3]; const value = 1; const isInArray = array.includes(value); console.log(isInArray); // true

Sep 17, 2012 · var array = [ { name:"string 1", value:"this", other: "that" }, { name:"string 2", value:"this", other: "that" } ]; You can use the following function to search for items. const search = what => array.find(element => element.name === what); And you can check whether the item was found or not.

Jan 9, 2025 · The find() method in JavaScript looks through an array and returns the first item that meets a specific condition you provide. If no item matches, it returns undefined. It skips any empty space in the array and doesn’t alter the original array. Syntax: array.find(function(currentValue, index, arr), thisValue) Parameters:

JavaScript Array find() The find() method returns the value of the first array element that passes a test function. This example finds (returns the value of) the first element that is larger than 18:

In this tutorial, you will learn how to use the JavaScript find() method to search for the first element in an array, which satisfies a test.

Jun 24, 2020 · There are different methods in JavaScript that you can use to search for an item in an array. Which method you choose depends on your specific use case. For instance, do you want to get all items in an array that meet a specific condition? Do you want to check if any item meets the condition?

Sep 1, 2021 · The find() method is an Array.prototype method which takes in a callback function and calls that function for every item within the bound array. When the callback function evaluates to true , the method returns the current item and breaks the loop.

Aug 30, 2024 · In this extensive guide, we covered all aspects of how to use JavaScript‘s handy array method: Array.find() – including a deep dive on internals, use cases, performance, and comparison to related methods.