not in string jav code example
Example 1: javascript string contains
var string = "foo",
substring = "oo";
console.log(string.includes(substring));
Example 2: javascript string includes
'Blue Whale'.includes('blue') // returns false
var string = "foo",
substring = "oo";
console.log(string.includes(substring));
'Blue Whale'.includes('blue') // returns false