how to find if text contans in string js code example

Example 1: check if word is in string javascript

var str = "Hello world, welcome to the universe.";
var n = str.includes("world");

Example 2: includes in javascript

var colors = ['yellow', 'red', 'pink'];
var string = 'yellow and red are pretty cool';

// outputs false
console.log(colors.include('blue');
// outputs true
console.log(string.includes('yellow');