The Complete Vue.js Course for Beginners - Watchers

The video tutorial explains the concept of watchers in Vue.js, demonstrating their use through a practical example. It starts with setting up a simple counter with increment and decrement buttons. The tutorial then introduces watchers to trigger alerts when the counter exceeds a certain value. Further, it refines the logic to ensure alerts only appear under specific conditions, enhancing the functionality of the application.

What is the initial value of the counter in the Vue.js example?

• 1

• 5

• 0

• 10

What happens when you click the plus button in the Vue.js example?

• The counter decreases

• The counter remains the same

• The counter increases

• An alert pops up

What is the purpose of the watch function in the Vue.js example?

• To observe changes in data and trigger actions

• To style the webpage

• To add new buttons

• To reset the counter

What condition triggers an alert in the advanced watcher functionality?

• When the counter is less than 5

• When the counter is exactly 10

• When the counter exceeds 10

• When the counter is negative

How can you reset the counter to zero in the Vue.js example?

• By clicking the plus button

• By setting the counter to 0 in the code

• By refreshing the page

• By clicking the minus button