Should concat accept iterables as well...

[jasnell]

Right now the usage pattern would be like...

const u8_1 = new Uint8Array(10);
const u8_2 = new Uint8Array(10);
const u8_3 = Uint8Array.concat([u8_1, u8_2]);

With the expectation that the inputs are always the same type.

Should we also support...

const u8_1 = new Uint8Array(10);
const u8_2 = [1,2,3];
const u8_3 = Uint8Array.concat([u8_1, u8_2]);

With the notion that the inputs can be a mix of iterables with the constraint that the iterable must yield values of an acceptable type for the TypedArray type?

/cc @bakkot

[bakkot]

I think allocating TypedArrays in engines is generally moderately expensive so it seems nice to let users avoid the intermediate TypedArray allocation.

[jasnell]

Nice yes, but a bit more complicated given the additional complexity of calculating the total resulting width. Don't want to rule it out tho, let me consider a bit more how we can reasonably handle it.