Week 5 Day 4 Challenge — Roller Coaster Height Checker

1. Build this in Design Mode first

STEP 1

Create these elements on screen1 with these exact IDs and starting text.

Type	ID	Text
Label	`promptLabel`	Enter your height in inches:
TextInput	`heightInput`	(leave blank)
Button	`checkBtn`	Check Rides
Label	`resultLabel`	Result: --

2. Switch to Code Mode

STEP 2

Copy this starter code into Code Mode and fill in the marked STEP.

onEvent("checkBtn", "click", function() {
  var height = getNumber("heightInput");

  // STEP: write an if / else if / else chain and set resultLabel:
  //   below 36   -> "Result: Too short for any ride."
  //   below 48    -> "Result: Kiddie rides only."
  //   below 60    -> "Result: Most rides, with an adult."
  //   otherwise   -> "Result: All rides allowed."

});

3. Check yourself — predict before you test

STEP 3

Input	What it should test
30	clearly too short
36	exactly the first cutoff
40	clearly kiddie only
48	exactly the second cutoff
55	clearly most rides
60	exactly the third cutoff
72	clearly all rides

If 36, 48, or 60 land on the wrong side of their cutoff, that's a boundary bug — recheck the comparison operator on that one line first.

Try it for real before checking the answer key.

Answer key

onEvent("checkBtn", "click", function() {
  var height = getNumber("heightInput");

  if (height < 36) {
    setText("resultLabel", "Result: Too short for any ride.");
  } else if (height < 48) {
    setText("resultLabel", "Result: Kiddie rides only.");
  } else if (height < 60) {
    setText("resultLabel", "Result: Most rides, with an adult.");
  } else {
    setText("resultLabel", "Result: All rides allowed.");
  }
});