// let username;
// username = "ENOCK";

//or 

let username = "Enock";
let email = "enock@gmail.com"

console.log(username);

// Constante Variable
// value that doens't change

const firstname = "Enock"

firstname = "Alex"; // TypeError: Can't reassign/change const variable

// Naming
// - Start with a letter,$, or _

// some valide varaible names: 
let a;
let color;
let _private;
let $button;
let getTop10;
let a_large_name;
let camelCase // when more than 1 word, the second word star with upperCase.

// choose descriptive and meaningful names (have to describ the data the hold)