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JavaScript JavaScript Foundations Arrays Getting and Setting

Posted by Ira Salem
Ira Salem
10,331 Points

Technical Difficulties

The first part dealing with the "thirdElementInArray" variable was correct when I clicked on the check button. Afterwards when I type in the answer for the second challenge which states "On about line 18, set 31st element in 'myArray' to the world 'treehouse'" it says that the first challenge is no longer correct even though I didn't change anything from the first answer.

Sounds like some technical difficulties to me. Anybody else experience this or am I just flat out wrong and I did mess up my code?

index.html 
<!DOCTYPE html>
<html lang="en">
  <head>
    <title> JavaScript Foundations: Arrays</title>
    <style>
      html {
        background: #FAFAFA;
        font-family: sans-serif;
      }
    </style>
  </head>
  <body>
    <h1>JavaScript Foundations</h1>
    <h2>Arrays: Getting and Setting</h2>
    <script>
      var myArray = ["sugar", "rush", "fix", "it", 3.14, 42];
      var thirdElementInArray = myArray[2];
      var myArray[30] = "treehouse";
    </script>
  </body>
</html>

5 Answers

Ira Salem
Ira Salem
10,331 Points

I figured out the answer. It was 

            <p>myArray[30] = "treehouse";</p>
            ```
Hugo Paz
Hugo Paz
15,622 Points
Hugo Paz
Hugo Paz
15,622 Points

Hi Ira,

jeremie got the right idea, you are declaring the variable myArray again.

You should do myArray[30] = 'treehouse'

jeremie singler
jeremie singler
4,569 Points
jeremie singler
jeremie singler
4,569 Points

hello 

It is because you are changing the value of myArray you need to set array to different name;

hope this will help

Nathan Smutz
Nathan Smutz
9,492 Points
Nathan Smutz
Nathan Smutz
9,492 Points

The big problem I see is:

var myArray[30] = "treehouse";

myArray doesn't have a 30th item so that'll error. I imagine you meant to use a 3 there.

Sometimes it'll say something earlier broke when you introduce a bug.

Ira Salem
Ira Salem
10,331 Points

Well the challenge is to make 'treehouse' the 31st element. I see what your saying but according to the video the only thing that should happen is every element in between that doesn't have anything assigned to it will be considered 'undefined' so it'll say 'undefined' repeatedly until it gets to the 31st element which should read 'treehouse' unless I'm not understanding something.

jeremie singler
jeremie singler
4,569 Points
jeremie singler
jeremie singler
4,569 Points

what you are lookin for isn't

treehouse = [30];

kind regards