Answers for "contains method in javascript"

javascript string contains

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

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

string contains javascirpt

const string = "foo";
const 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

javascript string contains

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)

js check if string contains character

"FooBar".includes("oo"); // true

"FooBar".includes("foo"); // false

"FooBar".includes("oo", 2); // false

js string contains

'Bandeira do Brasil'.includes('brasil'); // retorna false