Initializing a TypeScript array interface

Question

Why is this illegal in TypeScript?

interface numarr {
    [i : number] : number;
}

var p : numarr = [3,6,8];

The compiler says "Cannot convert 'number[]' to 'numarr'."

I'm afraid I've misunderstood something quite basic here. I thought the point of the above interface was to describe an array of numbers indexed by numbers, which is exactly what [3,6,8] is.

Serkan Inci · Accepted Answer · 2013-02-25 02:13:22Z

3

You can alternatively use the following syntax, if I didn't get you wrong.

var arr : number[] = [3, 6, 8];

answered Feb 25, 2013 at 2:13

Serkan Inci

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oz1cz · Accepted Answer · 2018-11-07 10:07:25Z

1

I asked this question in 2013. It is no longer relevant. The code in my question is now accepted by the compiler.

answered Nov 7, 2018 at 10:07

oz1cz

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