Assuming an 8-bit byte used to be a "vendor specific hack." Assuming twos complement integers used to be a "vendor specific hack." When all the 36-bit machines died, and all the one's complement machines died, we got over it.
That's where big endian is now. All the BE architectures are dying or dead. No big endian system will ever be popular again. It's time for big endian to be consigned to the dustbin of history.
> It's time for big endian to be consigned to the dustbin of history.
And, especially what most people call big-endian, which is a bastardized mixed-endian mess of most significant byte is zero, while least significant bit is likewise zero.
> No big endian system will ever be popular again
Cries in 68k nostalgia
JS numbers behave much more like C's definition of signed overflow being UB as it's signed numbers are effectively like 51-ish bit with a SEPARATE sign bit and non-assiciative behavior when overflow happens.