chunks of an Uint8Array

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allObjects
edited... (and see post #10)
I expected the negative side effects... unfortunately (Chrome) browser just does not behave as (EDITED: by me misread) MDN constructor specs / doc ...

In test code new Uint8Array(buffer, begin, length).length return just the length of buffer... and on .set() it reports Uncaught RangeError: Source is too large(…).

In Chrom inspec/debug console:
```
> var b = new Uint8Array(10);
< undefined
> var t = new Uint8Array(5);
< undefined
> t.set(new Uint8Array(b,0,5))
X> VM380:1 Uncaught RangeError: Source is too large(…)(anonymous function) @ VM380:1
> (new Uint8Array(b,0,5)).length
< 10
```
Found no complaint on the Web about this violation...

Write a compiled copy function, could that help speeding up an element-wise copy?

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