https://stackoverflow.com › questions › 237104
How do I check if an array includes a value in JavaScript?const array = [1, 2, 3, 4, 5, 6, 7]; console.log(array.includes(3)); //includes() determines whether an array includes a certain value among its entries. console.log(array.some(x => x === 3)); //some() tests if at least one element in the array passes the test implemented by the provided function.
https://www.w3schools.com › Jsref › jsref_includes_array.asp
JavaScript Array includes() Method - W3SchoolsThe includes() method returns true if an array contains a specified value. The includes() method returns false if the value is not found. The includes() method is case sensitive.
https://stackoverflow.com › questions › 16312528
Check if an array contains any element of another array in JavaScriptArray .filter() with a nested call to .find() will return all elements in the first array that are members of the second array. Check the length of the returned array to determine if any of the second array were in the first array.
https://www.javascripttutorial.net › array › how-to-check-if-an-array-contains-a-value-in...
How to Check if an Array Contains a Value in JavascriptFor primitive values, use the array.includes() method to check if an array contains a value. For objects, use the isEqual() helper function to compare objects and array.some() method to check if the array contains the object.
La méthode includes() permet de déterminer si un tableau contient une valeur et renvoie true si c'est le cas, false sinon.
https://thispointer.com › javascript-check-if-an-array-includes-a-value-6-ways
Javascript: check if an array includes a value (6 ways)This article demonstrates easy ways to check if an array includes a particular value in a javascript using different methods and example illustrations. Table of Contents: Check if a value exists in javascript array using includes()
https://stackabuse.com › javascript-check-if-array-contains-a-value-element
JavaScript: Check if Array Contains a Value/Element - Stack AbuseJavaScript contains a few built-in methods to check whether an array has a specific value, or object. In this article, we'll take a look at how to check if an array includes/contains a value or element in JavaScript. Check Array of Primitive Values Includes a Value. Array.includes () Function.
https://www.geeksforgeeks.org › how-do-i-check-if-an-array-includes-a-value-in-javascript
How do I check if an Array includes a value in JavaScript?The includes() method returns true if an array contains a specified value. Conversely, it returns false if the value is not found. This method simplifies checking for the presence of an element within an array, providing a straightforward boolean result. Syntaxarray.includes(searchElement, start);ParameterssearchElement: This ...
https://www.freecodecamp.org › news › check-if-an-item-is-in-an-array-in-javascript-js...
Check if an Item is in an Array in JavaScript – JS Contains with Array ...You can use the includes() method in JavaScript to check if an item exists in an array. You can also use it to check if a substring exists within a string. It returns true if the item is found in the array/string and false if the item doesn't exist.
https://attacomsian.com › blog › javascript-array-search
How to check if an array contains a value in JavaScriptIn JavaScript, there are multiple ways to check if an array includes an item. Apart from loops , you can use includes() , indexOf() , find() , etc. to check whether the given value or element exists in an array or not.
