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JavaScript Arrays

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Improve the Quiz – One Solution

4:28 with Guil Hernandez

This video covers one way to improve the quiz program by keeping track of the number of questions answered correctly and incorrectly.

Function for creating list items:

function createListItems(arr) {
  let items = '';
  for (let i = 0; i < arr.length; i++) {
    items += `<li>${arr[i]}</li>`;
  }
  return items;
}

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    If you didn't get everything, 0:00
    you can code along with me while I show you how I did it. 0:01
    I'll start with keeping track of questions that were answered either correctly or 0:03
    incorrectly. 0:08
    Up top, I'll create two empty arrays to hold each 0:09
    set of questions, correct and incorrect. 0:13
    When a user types the correct answer to a question, 0:20
    I'll add that question to the correct array. 0:24
    The if statement here checks if the user's response matches the correct answer. 0:27

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