//Making variables with let:
let numberOfFriends = 1;
//Incrementing:
numberOfFriends += 3; //numberOfFriends is now 4
// Variables with const
const minimumAge = 21; //CANNOT REASSIGN!
//Booleans - true or false values
true;
false;
let isHappy = true;
//Naming Conventions
// Use upper camel-cased names:
let numberOfChickens = 6; //GOOD
// NOT THE JS WAY:
// let number_of_chickens = 6;