Typed arrays in TypeScript - what is the difference between Array<Foo> and Foo[]?

Question

In TypeScript I have a class Foo

class Foo {}

I want array of instances of Foo. What is the difference between

var foos : Array<Foo>;

and

var foos : Foo[];

It seems to me that both define array of instances of given type, is there any difference at all?

EDIT: What are the names of these constructs? How do I correctly refer to them?

Fenton · Accepted Answer · 2014-01-25 23:12:58Z

14

They are both identical as type annotations, so you can use whichever you prefer.

The Array syntax has only been available since generics were added.

answered Jan 25, 2014 at 23:12

Fenton

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2 Comments

daniel.sedlacek Over a year ago

I have edited the question a bit - do you happen to know what are the names of these constructs? How do I correctly refer to them?

Fenton Over a year ago

The square brackets are an 'array literal' and the <T> version is a 'generic type with a type argument' - although in this case they are both 'type annotations' too.

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