check if string is in string js code example

Example 1: angular string contains

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

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

Example 2: check for substring javascript

const string = "javascript";
const substring = "script";

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

Example 3: angular string contains

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

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