Using the.indexOf()Function to Check if Array Contains Value in JavaScript The.indexOf()functionis a commonly used function in javascript. It works well while searching for an element in an array or even a string. Syntax indexOf(element,index) ...
In React.js, you can check whether an array or object contains a specific value by using various methods. For arrays, you can utilize the includes() method to determine if the value is present.For example, myArray.includes('specificValue') returns a bool
It is the simplest and fastest way to check whether a JS array contains an item or not. The JavaScript Array.indexOf() method checks a JS array for a given value or item, and if it finds the item in the array, it returns its index. If the JavaScript array contains no such values ...
Vue Js Check if Array or Object contains Value Vue.JS check if Array,Object or String is empty: In Vue.js, To check if an array is empty in Vue.js, you can use the Array.length property, which returns the number of elements in the array To check if the string is empty in Vue....
Given a JavaScript array, how do you check if it contains a specific item?Use the includes() method on the array instance.For example:['red', 'green'].includes('red') //true ✅ ['red', 'green'].includes('yellow') //false ❌ ...
check.contains(array, value): Returnstrueifarraycontainsvalue,falseotherwise. check.in(value, array): Returnstrueifvalueis inarray,falseotherwise. Date predicates check.date(thing): Returnstrueifthingis a valid date,falseotherwise. Function predicates ...
# Check if Array contains any element of another Array using for You can also use a basic for loop to check if an array contains any element of another array. index.js const arr1 = ['pizza', 'cake', 'cola']; const arr2 = ['pizza', 'beer']; let containsAny = false; for (let...
If the Set has a length of 1, then all array elements are equal or the array only contains 1 element. index.js const arr1 = [1, 1, 1]; const arr2 = [1, 1, 2]; function allAreEqual(array) { const result = new Set(array).size === 1; return result; } console.log(allAre...
between:min:maxThe value must have a size between the given min and max. booleanThe value must be a javascript boolean. contains:valueThe value must contain the value. For a string, it does an "indexOf" check, an array "_.indexOf" and for an object "_.has". ...
Type:array Default:['optionalDependencies'] checkGitUrls By default, check-dependencies will skip version check for packages whose version contains the full repository path. For example: "dependencies":{"semver":"https://github.com/npm/node-semver.git#0.5.9"} ...