javasript string contains code example

Example 1: check if string contains javascript

var str = "Hello world, welcome to the universe.";

var n = str.includes("world");

Example 2: check if word is in string javascript

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

Example 3: javascript string includes

'Blue Whale'.includes('blue')  // returns false

Example 4: javascript string contains

var string = "foo",
var substring = "oo";

console.log(string.includes(substring));