Why can I add named properties to an array as if it were an object?

Question

The following two different code snippets seem equivalent to me:

var myArray = Array();
myArray[\'A\'] = \"Athens\";
myArray[\'B\'] = \"Berlin\";
         


        

Answer 1

The {}-notation is just syntactical sugar to make the code nicer ;-)

JavaScript has many similar constructs like the construction of functions, where function() is just a synonym for

var Func = new Function("", "");