Re:SvelteKit Is in Public Beta
by marcus_cemes on Wednesday March 24, 2021 @04:27AM
(#26564760)
Javascript does a lot of implcit conversions, it was badly designed and has dynamic types which means a lot of runtime checks, these quirks can't be removed with breaking a lot of legacy code.
Yet, like with C, you learn the different ways you can shoot yourself in the foot over time and avoid them. In 10 years I've never written a safe_not_equals function, although explicit object/null checks are a thing, but it wouldn't surprise me if libraries used by millions that may end up in Internet Explorer go that extra step. Each language has it's particular use-case, JS happens to be the language of web development.
Unsafe equality: "1" == 1 is true (string and float, https://dev.to/mkrl/javascript-quirks-in-one-image-from-the-...).
Yet, like with C, you learn the different ways you can shoot yourself in the foot over time and avoid them. In 10 years I've never written a safe_not_equals function, although explicit object/null checks are a thing, but it wouldn't surprise me if libraries used by millions that may end up in Internet Explorer go that extra step. Each language has it's particular use-case, JS happens to be the language of web development.