Is in Typescript possible to define 'object of arrays of type string? (right position of type checking?)

Question

I know in typescript an object can be typed either by ClassName (ES6 class) or by 'any'.

I also know you can define an array of string (string[]) and even an array of arrays of string (string[][]).

I need to express the type of an object whose properties are only arrays of type string.

e.g.

export var MY_VAR: any = {
    <string[]> p1: [...]
}

I tried with something like any following object_name: but not luck.

I also tried any following object_name and before each object's array.

In either case I have syntax errors (see example above)

EDIT apparently

export var MY_VAR: any = {
    <string[]> p1: [...]
}

works instead. however I don't understand what the difference is

Answer 1

It's not very clear what you're asking for, but if I managed to get you right then:

interface MyType {
    [key: string]: string[];
}

Or inline:

let myArrays: { [key: string]: string[] } = {};