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Now we will use a couple of examples to show how the includes() method actually works. How to search an element/item in an array using includes method (JavaScript) Try it Syntax includes(searchElement) includes(searchElement, fromIndex) Parameters searchElement The value to search for. Use Option + ⌘ + C keyboard shortcut keys in Safari (if the developer menu does not appear, open Preferences by pressing ⌘ +, and in the Advanced tab, check “Show Develop menu in menu bar”). () - JavaScript MDN () The includes () method determines whether an array includes a certain value among its entries, returning true or false as appropriate.Use CTRL + SHIFT + K keyboard shortcut keys for Mozilla.Use the F12 key in Chrome and other chromium-based browsers.Note: We will use the browser console to demonstrate examples performed in this post.

Since this article is about JavaScript, we will only use includes() in our article from here on. The includes() and contains() both have the same functionality, but in JavaScript, this functionality is termed as includes(), while in other programming languages such as Java, it is called contains(). It is used in other languages such as Java. The includes() is a method present in JavaScript, whereas contains() is not present in JavaScript. The includes and contains both methods search for a substring within a string or find elements within an array. It is 0 by default.ĭifference between includes() and contains() It gives the index at which to start the search. starting_point: This parameter is optional. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.It is the element that needs to be searched within the array.