You can use the indexOf() method to check if a given element exists in an array or not. The indexOf() method returns the index of the element inside the array if it is found, [ … ]
Tag: js indexOf example
How to Check If a String Contains a Substring in JavaScript
In this article I will discuss how you can check if a string contains particular substring. 1. Prior JavaScript ES6, the conventional way to check if a string contains a [ … ]