I'm certain that at least 95% of our code would be safe if you replaced === with ==. We likely have some edge cases that would blow up, but by and large, we don

I'm certain that at least 95% of our code would be safe if you replaced === with ==. We likely have some edge cases that would blow up, but by and large, we don't really depend on the type checking of identity. We write code as if you explicitly declare type on JS. I don't think using equality is inherently bad. I think that it can lead to a lot of bad habits for junior devs who don't understand some basics about types. I'm not against weak/implicit typing systems, but my experience has taught me that junior devs (and student alike) are prone to errors extending from the type system.