var string = "foo",
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");
}
var email = "grepper@gmail.com";
if(email.includes("@")){
console.log("Email is valid");
}
else{
console.log("Email is not valid");
}
const ParticipantsOfArtExhibition = [
"Jhon",
"Amy",
"Liam"
]
ParticipantsOfArtExhibition.includes("Jhon")
ParticipantsOfArtExhibition.includes("Thompson")
ParticipantsOfArtExhibition.includes("Amy")