pxt-calliope/olddocs/lessons/digi-yoyo/quiz-answers.md

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# digi yoyo quiz answers
Answers for digi yoyo quiz.
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This is the answer key for the [digi yoyo quiz](/lessons/digi-yoyo/quiz).
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## 1. Describe what a "while loop" does?
<br/>
A loop that repeats code while a condition is true.
## 2. Write the code that will create a **variable** called `count` and set the variable to 0.
![](/static/mb/lessons/counter-0.png)
<br/>
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```blocks
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let count = 0
```
## 3. Create a `while loop` that will loop until the **variable** `count` equals 4.
![](/static/mb/lessons/digi-yoyo-0.png)
<br/>
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```blocks
let count = 0
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while (count < 5) {
count = count + 1
}
```