2-4 Build Timer App

Lesson 2-4: Build Timer App

Objective: Build Timer App that can be incremented and countdown

Watch the video about the Timer App you will build today.

Incrementing is adding to a value. You will increment the value of a property when creating your counter app.
Decrementing is subtracting from a value. You will decrement when creating the countdown timer app.

You will frequently increment and decrement values -- stored in both variables and components -- when creating apps.

2-5 Timer App Challenge

The Countdown Timer image is from Wikipedia.

2-5 Build Timer App Challenge

Test your app and check for bugs.

2-5 Build Timer App Challenge Part II

Test your app and check for bugs.

2-7 Timer App Customizations

For Teachers: Go to this Folder to make a copy of this quiz for your class. Email rothmana@sfusd.edu if you dont have access.

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