Yeah, it's easy: once you know a dozen languages or so the quick reference like this one is all you really need to learn most languages, at least to the point o

Yeah, it's easy: once you know a dozen languages or so the quick reference like this one is all you really need to learn most languages, at least to the point of comfortably writing everyday code. I say "most" languages, because this kind of reference doesn't work for languages based on completely different semantics than the languages you know: APL and J are the primary examples for me (EDIT: also, Forth. But not Factor or Cat or Joy... dunno why exactly). Anyway, this is great for polyglot programmers, who would be bored to tears by "beginners guide" to just about any language and who know enough about how programming languages work. It's probably of very little help to programmers who know only a very few languages and/or for those who didn't study programming language design, though. In my case I successfully used this site (and some other resources, as well) to get up to speed with Haxe, Nim, LiveScript and Lua, but then again, learning new languages is something I do all the time (https://klibert.pl/articles/programming_langs.html https://klibert.pl/articles/programming_langs.html) for years now, so I may not be the best example :)