Answers for "javascript contains any where string"

string contains in javascript

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

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

javascript string contains character

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