Javascript is weakly typed. And untyped does not mean no type declarations. It means no types, just like it says. Assembly is untyped. Javascript is dynamic

Javascript is weakly typed. And untyped does not mean no type declarations. It means no types, just like it says. Assembly is untyped. Javascript is dynamically typed. Very different. http://en.wikipedia.org/wiki/Programming_language#Typed_versus_untyped_languages http://en.wikipedia.org/wiki/Programming_language#Typed_vers... Javascript does not define the implementation details. It does not have to be interpreted, and in fact I don't believe any modern implementation is interpreted. Javascript is generally compiled to byte code which is then run in a VM, or native machine code (V8 at least does this). There is no reason javascript could not have a static type system, there are statically typed scripting languages. It is dynamically typed by deliberate decision, not "we can't do it any other way".