Question

i am new of javascript, i have been told by someone, he said “speak strictly, javascript doesn’t have multidimensional Array and associative array “. but in a book, i saw the following

var my_cars=Array();
my_cars["cool"]="Mustang";

$a=Array(Array(0,1),2);

so the opinion form he is wrong? am i right?

Answer 1

JavaScript has arrays of whom their elements can be other arrays.

However, JavaScript has Objects with properties, not associative arrays.

Buy a better book.

1. [] is much better than Array(). Also, why not instantiate an Array object explicitly then rely on Array returning a new object?
2. The example is setting the property cool on the Array.
3. Why the $a sigil? Why no new operator again?