Really? the only place you wouldn't find that is in Assembly language on baremetal. Even C has platform libraries and system calls. I haven't seen a more dither

Really? the only place you wouldn't find that is in Assembly language on baremetal. Even C has platform libraries and system calls. I haven't seen a more dithered and inconsistent "hodge podge" than when trying to get something as simple as a timer working consistently across all the Unix-likes. Browsers are just a platform like any other, you work with the platform capabilities the OS or platform gives you. what alternative do you think there is?