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The "Watchers Exercise" Lesson is part of the full, Introduction to Vue 3 course featured in this preview video. Here's what you'd learn in this lesson:

Students are instructed to use a watcher to modify the value of a given method.

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Transcript from the "Watchers Exercise" Lesson

>> Exercise time, your favorite time. So, in this and there's a couple different ways that you can build this, but I want you to pay attention to the set timeout in here. So if we say, where is my taco? Then you have a button that says Click me to order a taco.

[00:00:19] Click that button and it changes that, to a taco with an exclamation point. And then we had a set quickly set timeout for a second your order was submitted and then it went away. Now, what I want to make sure that you do, during this exercise is use a watcher somewhere.

[00:00:37] So use a watcher at some point to change one of the values. So you can also use a method for other things. You can also use a conditional or whatever you want, but use a watcher somewhere. If we look at the code pen we have button at click, get taco click me to order a taco and the h2 is where is my taco.

[00:01:01] We have our order status right now is no or as an empty string and the order submitted is no. And I gave you the method of get taco but I didn't put anything inside of it. So you have to figure out what you're gonna put inside of there.