javascript string includes

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

console.log(string.includes(substring));const string = "javascript";
const substring = "script";

console.log(string.includes(substring));  //truevar str = "Hello world, welcome to the universe.";
var n = str.includes("world");'Blue Whale'.includes('blue')  // returns false
const string = "foo";
const substring = "oo";

console.log(string.includes(substring));const s = 'I am going to become a FULL STACK JS Dev with Coderslang';

console.log(s.includes('FULL STACK'));     // true
console.log(s.includes('cheeseburger'));   // false