Create strongly typed array of arrays in TypeScript

Question

In a language like C# I can declare a list of lists like:

List> list_of_lists;

Is there a similar way to declare a strong

Answer 1

@Eugene you can use something like Array<Array<[string, number]>> to define a Map type

Answer 2

You do it exactly like in Java/C#, e.g. (in a class):

class SomeClass {
    public someVariable: Array<Array<AnyTypeYouWant>>;
}

Or as a standalone variable:

var someOtherVariable: Array<Array<AnyTypeYouWant>>;

Answer 3

The simplest is:

x: Array<Array<Any>>

And, if you need something more complex, you can do something like this:

y: Array<Array<{z:int, w:string, r:Time}>>

Answer 4

int is not a type in TypeScript. You probably want to use number:

var listOfLists : number[][];