Week 3 — Choice statements, Booleans, Numbers and Loops

JavaScript topics JavaScript examples

Slide set

Variable types

• Numbers — a two number arithmetic calculator.
• Boolean
• Datatype conversion
• Object literals — example
• Typeof operator, undefinded and null types

Alert, prompt and confirm popups

• window.alert(String)
• window.prompt(String, optional_default_string)
• window.confirm(String)

Choice statements

• Using if statements here.
• Using switch statements here.

Loops

• Night out, deciding what to do based on cash on hand using a nested if statement program, and a while loop program
• While loop control statement example.