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JavaScript JavaScript Foundations Strings Methods

Posted by John Magee
John Magee
Courses Plus Student 9,058 Points

Javascript method length, no parentheses?

Just wondering why the .length method in javascript doesn't require () when methods like .toUpperCase, .toLowerCase do?

index.html 
<!DOCTYPE html>
<html lang="en">
  <head>
    <title> JavaScript Foundations: Strings</title>
    <style>
      html {
        background: #FAFAFA;
        font-family: sans-serif;
      }
    </style>
  </head>
  <body>
    <h1>JavaScript Foundations</h1>
    <h2>Strings: Methods</h2>
    <script>
      var quick = "The quick brown fox jumps over the lazy dog";

          var quickLength    = quick.length;
          var indexOfBrown = quick.indexOf("brown");
          var tenthCharacter = quick.charAt(9);
          var wordBrown = quick.substr(indexOfBrown, 5);
          var quickUpper = quick.toUpperCase();
          var quickLower = quick.toLowerCase();
    </script>
  </body>
</html>

1 Answer

Hugo Paz
Hugo Paz
15,622 Points
Hugo Paz
Hugo Paz
15,622 Points

HI John

Length is not a method, it is a property of the String object.

John Magee
John Magee
Courses Plus Student 9,058 Points

Oh right, long weekend, brain short out