moving out outdated js docs

olddocs/js/lessons/button/challenges.md

@@ -0,0 +1,52 @@
+# button challenges
+
+My script. #docs
+
+### Challenge 0
+
+Howdy! This [guided tutorial](/rxqgzy) 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`.
+