[habibur]

> Lua also essentially got lexical scoping of local variables correct from the beginning while js blessed us with the nightmare of var.

That was not my experience when I was working with lua. Did anything change since? Asked google. Answered :

> In Lua, if a variable is assigned a value inside a function without being explicitly declared with the local keyword, it will automatically become a global variable. This is because, by default, all variables in Lua are global unless explicitly specified as local.

[talideon]

Yeah, this puzzled me too. I'm assuming they're referring to the semantics of "var" in JS vs "local" in Lua, with the latter resembling "let" in JS, which doesn't have broken scoping.