I forgot, what is difference between var and let in JavaScript? Something something scoping rules, but I forgot (or never knew?) the details...
var
let
@vaporeon_ let uses lexical scope. var ignores most blocks aside from function boundaries, and also hoists
@vaporeon_
// i is in scope HERE!!for (var i = 0; i < 10; i++) { // ...}// i is still in scope!
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@vaporeon_