Module 6 - Lesson 9

jQuery Variables

Lesson Overview

In this short lesson, I’d like to explain what variables are and how we can use them when writing our jQuery code.

Video Chapters

00:00 Introduction

00:30 Creating a variable

01:42 Alerting a variable

03:40 Storing selectors as variables

07:23 Global and local variables

Code Examples

// Example 1 	

var sampleVar = "Hello!";

alert(sampleVar);

// Example 2 - number

var One = 1;
var Two = 2;

alert(One + Two); // 3

// Example 3 - text string

var One = "1";
var Two = "2";

alert(One + Two); // 12

// Example 4

var $paragraph = $('p');

$paragraph.text('this is new');
$paragraph.text(sampleVar);