How to check whether a string contains a substring in JavaScript?

Question

Usually, I would expect a String.contains() method, but there doesn't seem to be one.

What is a reasonable way to check for this?

Answer 1

There are many ways to check whether a string contains a substring in JavaScript some of them I am mentioning here:-

The ES6 introduced a method String.includes()this method will return true or false depending upon the result:

var string = "xyzb", substring = "yz"; console.log(string.includes(substring));