55 lines
1.2 KiB
Markdown
55 lines
1.2 KiB
Markdown
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# transformers challenges
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Coding challenges for the transformers tutorial. #docs
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## Before we get started
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Complete the following guided tutorial:
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* [tutorial](/microbit/lessons/transformers/tutorial)
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At the end of the tutorial, click `keep editing`. Your code should look like this:
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```
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let inital = 5
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input.onButtonPressed("A", () => {
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let doubled1 = double(initial)
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basic.showNumber(doubled1, 150) // ***
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})
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```
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### Challenge 1
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Create a new function called `square` that returns the square of the number passed into the function.
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(Squaring means that you multiply the number by itself)
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```
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export function square(n: number) : number {
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let num: number
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return n * n
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return num
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}
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```
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### Challenge 2
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### @video td/videos/transformers-2
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Add a condition for when button `B` is pressed. We will use this condition in the last challenge.
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```
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initial = 5
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input.onButtonPressed("A", () => {
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let doubled = double(initial)
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basic.showNumber(doubled, 150)
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})
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input.onButtonPressed("B", () => {
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}) // ***
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```
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**Challenge 3**
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When the `B` button is pressed, display the square of the initial value. Use the function `square`. You should get the value 25.
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