moving out outdated js docs

olddocs/js/lessons/typing-game/challenges.md

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+# typing game challenges
+
+My script. #docs
+
+**Challenge 0**
+
+This [guided tutorial](/lessons/typing-game/tutorial) will teach you how to use the method concat to connect to pieces of text together.
+
+```
+alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+index = 0
+name = ""
+input.onButtonPressed(Button.A, () => {
+    led.showString(alphabet.substr(index, 1), 0)
+    index = index + 1
+})
+if (index > 25) {
+    index = 0
+}
+input.onButtonPressed(Button.B, () => {
+    name = name.concat(alphabet.substr(index - 1, 1))
+})
+input.onGesture(Gesture.Shake, () => {
+    led.showString(name, 150)
+})
+```
+
+**Challenge 1**
+
+After you have shown the string in the condition `on shake`, make the name variable hold nothing in it again so people can add a new name after they have shaken it.
+
+```
+alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+index = 0
+name = ""
+input.onButtonPressed(Button.A, () => {
+    led.showString(alphabet.substr(index, 1), 0)
+    index = index + 1
+})
+if (index > 25) {
+    index = 0
+}
+input.onButtonPressed(Button.B, () => {
+    name = name.concat(alphabet.substr(index - 1, 1))
+})
+input.onGesture(Gesture.Shake, () => {
+    led.showString(name, 150)
+    name = "" // ***
+})
+```
+
+**Challenge 2**
+
+After you have cleared the name variable to hold nothing, make `index := 0` so that when button `A` is pressed, the first letter of the alphabet will be displayed.
+
+```
+alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+index = 0
+name = ""
+input.onButtonPressed(Button.A, () => {
+    led.showString(alphabet.substr(index, 1), 0)
+    index = index + 1
+})
+if (index > 25) {
+    index = 0
+}
+input.onButtonPressed(Button.B, () => {
+    name = name.concat(alphabet.substr(index - 1, 1))
+})
+input.onGesture(Gesture.Shake, () => {
+    led.showString(name, 150)
+    name = ""
+    index = 0 // ***
+})
+```
+
+**Challenge 3**
+
+Give Micro a nickname and display it on the micro:bit!
+