![]() ![]() write ( " Pune exists in the array " ) elseĭocument. write ( " " ) //checking whether "Pune" exists or not if (cities. write ( " New Delhi does not exist in the array " ) ĭocument. write ( " New Delhi exists in the array " ) elseĭocument. includes ( " New Delhi " ) = true )ĭocument. Includes() is a predefined function in JavaScript, which is used to check whether a given element exists in the array or not?Įxample: JavaScipt Example //array var cities = //checking whether "New Delhi" exists or not if (cities. Submitted by IncludeHelp, on February 01, 2019 Thank you for reading my blog.JavaScript includes() function: Here, we are going to learn about the includes() function with example in JavaScript, how and when it is used? This function works well in all modern browsers, including edge! Thank you for reading, and let's connect! See the Pen Vanilla JavaScript string includes by Chris Bongers ( on CodePen. Following is the code for the array.includes () method. The JavaScript array.includes () method is used to check if an array contains a given element or not. false See the code examples in this Codepen Javascript Web Development Object Oriented Programming. This position is from where it will start to look. false String includes with offset position parameter Īs the brothers startsWith() and endsWith() this one has another position parameter. So the following code will fail: const string =Ĭonsole. ![]() ![]() includes ( 'living' ) ) įor the includes() function it is important to know that it is a case sensitive function. 'The greatest glory in living lies not in never falling, but in rising every time we fall.' Ĭonsole. We can use the includes() function by calling it on a string and passing a substring to it: const string = To do so, we are using the JavaScript function includes(). While we recently checked if a string startsWith or a string endsWith a specific substring, today we will learn how to find out if a string includes another substring. ![]()
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