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JavaScript JavaScript Foundations Arrays Methods: Part 1

Posted by abhiram reddy
abhiram reddy
16,020 Points

I have no idea what is going on here

<script> var spareWords = ["The","chimney","sweep's","dog"]; var saying = ["quick", "brown", "fox", "jumps", "over", "the", "lazy"]; var firstWord = spareWords.shift(1); , spareWords.unshift(firstWord); var lastWord = spareWords; saying; saying; </script>

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: Methods Part 1</h2>
    <script>
      var spareWords = ["The","chimney","sweep's","dog"];
      var saying = ["quick", "brown", "fox", "jumps", "over", "the", "lazy"];
      var firstWord = spareWords.shift(1); , spareWords.unshift(firstWord);
      var lastWord = spareWords;
      saying;
      saying;
    </script>
  </body>
</html>

1 Answer

Jonathan Grieve
MOD
Jonathan Grieve
Treehouse Moderator 91,252 Points
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,252 Points

Basically whats happening is JavaScript is storing 2 variables. One array contained in each.

In 2 more variables, and it's been a while but it looks like it's taking one word out of an array and replacing it with another, after which it outputs the newly formed array.

So it's just a case of moving a value of one array and adding it as a value of another. :-)

abhiram reddy
abhiram reddy
16,020 Points

I figured it out earlier, this was just worded funny. Thanks though