2.6 KiB

Raw Blame History

id	title	challengeType	dashedName
5d5a903507f328a948d398d0	Part 4	0	part-4

--description--

We've been declaring variables with the var keyword. However, in modern JavaScript, it's better to use let instead of var because it fixes a number of unusual behaviors with var that make it difficult to reason about.

Change every var to let.

--hints--

See description above for instructions.

assert(
  /let\s+xp\s*\=\s*0\;?/.test(code) &&
    /let\s+health\s*\=\s*100\;?/.test(code) &&
    /let\s+gold\s*\=\s*50\;?/.test(code) &&
    /let\s+currentWeapon\s*\=\s*0\;?/.test(code)
);

--seed--

--before-user-code--

<!DOCTYPE html>
<html lang="en" >
<head>
  <meta charset="UTF-8">
  <title>RPG - Dragon Repeller</title>
  <style>
    body {
      background-color: darkblue;
    }
    #text {
      background-color: black;
      color: white;
      padding: 10px;
    }
    #game {
      max-width: 500px;
      max-height: 400px;
      background-color: lightgray;
      color: white;
      margin: 0 auto;
      padding: 10px;
    }
    #controls {
      border: 1px black solid;
      padding: 5px;
    }
    #stats {
      border: 1px black solid;
      color: black;
      padding: 5px;
    }
    #monsterStats {
      display: none;
      border: 1px black solid;
      color: white;
      padding: 5px;
      background-color: red;
    }
    .stat {
      padding-right: 10px;
    }
  </style>
</head>
<body>
<div id="game">
  <div id="stats">
    <span class="stat">XP: <strong><span id="xpText">0</span></strong></span>
    <span class="stat">Health: <strong><span id="healthText">100</span></strong></span>
    <span class="stat">Gold: <strong><span id="goldText">50</span></strong></span>
  </div>
  <div id="controls">
    <button id="button1">Go to store</button>
    <button id="button2">Go to cave</button>
    <button id="button3">Fight dragon</button>
  </div>
  <div id="monsterStats">
    <span class="stat">Monster Name: <strong><span id="monsterName"></span></strong></span>
    <span class="stat">Health: <strong><span id="monsterHealth"></span></strong></span>
  </div>
  <div id="text">Welcome to Dragon Repeller. You must defeat the dragon that is preventing people from leaving the town. You are in the town square. Where do you want to go? Use the buttons above.</div>
</div>

--after-user-code--

</body>
</html>

--seed-contents--

<script>
var xp = 0;
var health = 100;
var gold = 50;
var currentWeapon = 0;

</script>

--solutions--

<script>
let xp = 0;
let health = 100;
let gold = 50;
let currentWeapon = 0;
</script>

2.6 KiB Raw Blame History