Understanding Uint8Array Memory Blocks Usage: 3 Bytes Data Consuming 3 Blocks (14 bytes per block)

how do you determine the size? just tried

Found G5, 2v16.294
>
>var a=5
=5
>E.getSizeOf(a)
=1
>var a="123"
="123"
>E.getSizeOf(a)
=1
>var a=new Uint8Array([1,2,3])
=new Uint8Array([1, 2, 3])
>E.getSizeOf(a)
=3
>var a=E.toString(Uint8Array([1,2,3]))
="\1\2\3"
>
>E.getSizeOf(a)
=2