javascript in string code example

Example 1: javascript string contains

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

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

Example 2: change no to string in js

var num = 15;
var n = num.toString();

Example 3: javascript string includes

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

Example 4: string contains in javascript

const string = "foo";
const substring = "oo";

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