Answers for "does contains work on string javascript"

javascript string contains

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

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

js string contains

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

console.log(string.indexOf(substring) !== -1);

javascript string contains

const string = "foo",
 const substring = "oo";
  console.log(string.includes(substring));