does-it-exist
Module to check if datatype contains param passed!
Install
npm i does-it-exist --save
Example
var exists = ; //sample datatypesvar array = 'hello' 'World' string = 'exists' object = name: 'your name'; // check array has element; // true; // false // check object has property; // true; // false // check string has letter; // true; // false