Last Class Review

Variables

• declaring variables using var keyword

• assigning / reassigning variables

// declaring a variable

var firstName;


// assigning a value to the variable

firstName = "Cletus";

// declare and assign an intial value to a variable

var score = 0;

// declare and assign a value of 0 to the score variable
var score = 0;

// changing the value of the score variable from 0 to 3
score = 3;

Data types

• Strings

• Numbers

• Booleans

• Arrays

• Objects

Operators

• Arithmetic

• Comparison

• Logical

Conditionals

• (if else) statements

var brushedTeeth = false

if(brushedTeeth){

  alert('Great job, you brushed your teeth!');

} else {

  alert('Go your brush teeth man, your breath is hot right now!');
}

• (if else if) statements

var yourGrade = 84;

if (yourGrade >= 90) {

  alert("Congrats your score is 90 or above, that's an A!");

} else if (yourGrade >= 80){

  alert("Congrats your score is 80 or above, you earned a B");

} else {

  alert("Your score is less than 80, no bueno");
}