Timer/Countdown App
Explore how to create a countdown timer using JavaScript’s setInterval function. Learn to update the display every second, stop the timer when time expires, and trigger messages. This lesson helps you build timing functionality and introduces you to key JavaScript timing methods with hands-on practice.
We'll cover the following...
We'll cover the following...
Let’s give JavaScript a sense of time! In this lesson, you’ll create a countdown timer that ticks down every second using setInterval(). The following will be the final output of the program:
Goal
You will learn to: ...