Exercise 1

Simple Button Function

The button has an onclick attribute that can be executed when the button is pressed.

Exercise 2

Javascript can change HTML attribute values. In this case we have changed the image of the light bulb to On/Off

Exercise 3

Javascript can also change the font of text

Javascript can do calculations on your fonts

Exercise 4

Javascript can hide and show elements

Exercise 5

A simple bouncing ball in a canvas

Exercise 6

Common HTML events

• onchange
• onclick
• onmouseover
• onmouseout
• onkeydown
• onload