It's not just the lack of static typing. It's weakly typed, so implicit conversions can happen when you don't expect them. A standard library which lacks the mo

It's not just the lack of static typing. It's weakly typed, so implicit conversions can happen when you don't expect them. A standard library which lacks the most basic functionality. Historical baggage(arguments, var, ...). Prototypical inheritance without proper language support. null vs. undefined. Async by default (that point may be debatable ;)).