• The if keyword followed by a set of parentheses () which is followed by a code block, or block statement, indicated by a set of curly braces {}.
• Inside the parentheses (), a condition is provided that evaluates to true or false.
• If the condition evaluates to true, the code inside the curly braces {} runs, or executes.
• If the condition evaluates to false, the block won’t execute.

An else statement must be paired with an if statement, and together they are referred to as an if...else statement.

• the and operator (&&)

• the or operator (||)

• the not operator, otherwise known as the bang operator (!)

• Less than: <

• Greater than: >

• Less than or equal to: <=

• Greater than or equal to: >=

• Is equal to: ===

• Is not equal to: !==

let sale = true;

sale = false;

if(sale) {
	  console.log('Time to buy!');
} else {
	  console.log('Time to wait for a sale.');
}

let hungerLevel = 7;
if (hungerLevel > 7) {
    console.log("Time to eat!");
} else {
    console.log("We can eat later!");
}