Answers for "string check contains in js"

javascript string contains

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

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

javascript string contains

var email = "[email protected]";
if(email.includes("@")){
  console.log("Email is valid");
}
else{
  console.log("Email is not valid");
}
// includes return boolean, if your string found => true else => false

js string contains

let example = "Example String!";
let ourSubstring = "Example";

if (example.indexOf(ourSubstring) != 0) {
	console.log("The word Example is in the string.");
} else {
	console.log("The word Example is not in the string.");
}