var str = "Hello world, welcome to the universe."; var n = str.includes("world");
s = "Hello world"; console.log(s.includes("world"));
var string = "foo", substring = "oo"; console.log(string.includes(substring));
const string = "foo"; const substring = "oo"; console.log(string.includes(substring));
var string = "foo"; var substring = "oo"; console.log(string.indexOf(substring) !== -1);
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 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));