79 lines
1.5 KiB
Markdown
79 lines
1.5 KiB
Markdown
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# headbands quiz answers
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create a charades game with a collection of strings #offset #screen #variables #docs
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## Name
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## Directions
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Use this activity document to guide your work in the [headbands tutorial](/microbit/lessons/headbands/tutorial).
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Answer the questions while completing the tutorial. Pay attention to the dialogues!
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## 1. What is the meaning of the term 'collection' in programming? What is a 'collection' of strings?
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<br/>
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A 'collection' is a group of variables of the same type stored together. A 'collection' of strings is a group of strings stored together.
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## 2. Consider the following lines of code.
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```
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coll = (<string[]>[])
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coll.push("puppy")
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coll.push("clock")
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```
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Write the line of code that will display the string "puppy" using `data->coll`.
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<br/>
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```
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basic.showString(coll[0], 150)
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```
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## 3. Consider the following lines of code.
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```
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coll = (<string[]>[])
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coll.push("puppy")
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coll.push("clock")
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coll.push("cat")
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```
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Write the line of code that will display the string "cat" using `data->coll`.
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<br/>
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```
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basic.showString(coll[2], 150)
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```
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## 4. Consider the following line of code.
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```
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coll = (<string[]>[])
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```
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Write the five (5) lines of code that will add the following five words to `data->coll`: puppy, clock, night, cat, cow.
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<br/>
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```
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coll.push("puppy")
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coll.push("clock")
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coll.push("night")
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coll.push("cat")
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coll.push("cow")
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```
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## 5. Write the code to get a string from the collection at a random position.
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<br/>
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```
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let index = Math.random(coll.length)
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let word = coll[index]
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```
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