javascript includes method

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

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

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

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

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

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

var str = "We got a poop cleanup on isle 4.";
if(str.indexOf("poop") !== -1){
	alert("Not again");
}
//use indexOf (it returns position of substring or -1 if not found)

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');

var str = "We got a poop cleanup on isle 4.";
if(str.indexOf("poop") !== -1){
	alert("Not again");
}

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

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

let storyWords = ['extremely literally actually hi bye okay']
let unnecessaryWords = ['extremely', 'literally', 'actually' ];

let betterWords = storyWords.filter(function(word) {
  return !unnecessaryWords.includes(word);
});
console.log(betterWords) // ['hi' 'bye' 'okay]

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

var n = str.includes("world", 12);
 

arr.includes(searchElement[, fromIndex = 0])