[JS] Find a included string

String.includes(substr, pos) returns true or false when the String includes the word.

console.log("Widget with id".includes("Widget")); // true
console.log("Hello".includes("Bye")); // false
console.log("Widget".includes("id")); // true
console.log("Widget".includes("id", 3)); // false, no "id" after index 3 position

Also, you can use String.startwith() or String.endwith() to find a word includes in the text.

console.log("Widget".startsWith("Wid")); // true
console.log("Widget".endsWith("get")); // true