pxt-calliope/docs/reference/js/lessons/button/challenges.md

button challenges

My script. #docs

Challenge 0

Howdy! This guided tutorial will help you complete this activity!

In this guide, you will learn how to use buttons and show text on the screen. Let's start by adding to respond when the left button is pressed.

input.onButtonPressed(Button.A, () => {
})

All the code inside input->on button pressed runs when the button is pressed. Let's add the code to show some text.

input.onButtonPressed(Button.A, () => {
    basic.showString("hello", 150)
})

Challenge 1

Let's add an event handler for Button B.

input.onButtonPressed(Button.A, () => {
    basic.showString("hello", 150)
})
input.onButtonPressed(Button.B, () => {
})

Challenge 2

Display bye when the B button is pressed.

input.onButtonPressed(Button.A, () => {
    basic.showString("hello", 150)
})
input.onButtonPressed(Button.B, () => {
    basic.showString("bye", 150)
})

Challenge 3

Change the strings so that they display some other text. In order to do so, you will need to edit what is inside the quotation marks in basic->show string.