cross-posted from: https://lemmy.world/post/10094818
spoiler
Gender variability as declarations in JavaScript: const / let / varMeme is based on Jordan Peterson "approival / disapproval" format, him being a conservative who disapproves of gender fluidity.
Transcript:
- Jordan Peterson approval image: const gender;
- Jordan Peterson angry image: let gender;
- Jordan Peterson crying image: var gender;
Const keyword means constant, a value that won't change after the application has been compiled; this allows for certain optimizations.
Let keyword is a JavaScript variable that is safely scoped down to the method or function level.
Var keyword is generally discouraged in JavaScript, because it's a global declaration. The value of it could be available anywhere in the application, and the app might have collisions.
So, the meme is, shifting from a constant, unchanging gender, to the middle where gender is defined and scoped to a local level, to the extreme, where gender is variable globally.
JavaScript does not have compile-time constants (it’s usually not compiled after all). The
constkeyword declares an immutable variable.Variables declared with
letare scoped to the block, not to the function.varis scoped to the function, not globally (unless it’s at the global level). It is discouraged because of its confusing semantics (“variable hoisting”).