title: Is the JavaScript Array.length property a function or a simple variable?
body: <p>I have the following JavaScript code. I have initialised an array using the new keyword, and therefore creating a new instance of the array object. I then populate the array by adding elements to it.</p>
  
  <p>However I think I have made a fundamental misunderstanding - it is the next part of the code that has massively confused me, please correct my terminology if it is not clear enough or it is just plain wrong. I have logged     <code>(beatles.length)</code>. I am using the length property to find out how many elements are in the array. But why is it that length is a property and not a method? </p>
  
  <p>Is it not the case that length is actually a method that the Array object can invoke that returns a numeric value? If length is not a method then why is it a property (a variable belonging to the array object)? Please explain the distinction here in a succinct way.</p>
  
  <pre><code>var beatles = new Array();
  beatles[0] = "John";
  beatles[1] = "Paul";
  beatles[2] = "George";
  beatles[3] = "Ringo";
  
  console.log(beatles.length);
  </code></pre>