//code to check if a value exists in an array using javascript indexOf var fruits_arr = ['Apple', 'Mango', 'Grapes', 'Orange', 'Fig', 'Cherry']; var string = "Orange"; // Find in Array fruits_arr.indexOf('Tomato'); fruits_arr.indexOf('Grapes'); // Find in String string...
Topic: JavaScript / jQueryPrev|NextAnswer: Use the indexOf() MethodYou can use the indexOf() method to check whether a given value or element exists in an array or not. The indexOf() method returns the index of the element inside the array if it is found, and returns -1 if ...
Vue Js Check Array Specfic Value Exist or Not: In Vue.js, the includes() method can be used to check if a specific value exists in an array. This method returns a boolean value indicating whether the element is present in the array or not. If the val
Example: const fruits = ["Banana", "Orange", "Apple", "Mango"]; fruits.includes("Mango"); check if an item exists in an array: const nums = [ 1, 3, 5, 7]; console.log(nums.includes(3)); // true
ArrayindexOfmethod, This returns number (-1,0,1, etc) check index with Es7 ArrayIncludesthat performs an element that exists in an array, returns true or false In this blog post, You’ll learn to check the Boolean value of an array in javascript or typescript. ...
Using the.includes()Function to Check if Array Contains Value in JavaScript Theincludes()function of JavaScript checks whether a given element is present in an array. It returns a boolean value. Hence, it is best suited inifcondition checks. ...
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Using isArray() Method To check if a variable is an array in JavaScript, we have used isArray() method. It returns a boolean value as result, either true or false. We have used two div elements to display the array and output using getElementById() and innerHTML property. We have al...
In this short article, you'll learn how to check if an array contains a certain value in Java. We will look at different examples of string as well as primitive arrays to find out if a certain value exists. String Arrays The simplest and easiest way to check if a string array contains...