Comparison with Javascript

Feature Boo Javascript
First-class functions yes yes
Function expressions yes yes
Closures yes yes
Scope Lexical (Function, Type) Lexical (Function)
Name resolution Static and Dynamic Dynamic
Type system Static and Dynamic (Strong) Dynamic (Weak)
Variadic functions yes yes (via arguments)
Inheritance Class/Type based Prototypal
Generators yes yes (Harmony)
List comprehensions yes yes (Harmony)
Iterators yes yes (Harmony)
Properties yes yes (Harmony)
Destructuring yes yes (Harmony)
Method overloading yes no
Operator overloading yes no
Macros yes no
Pattern Matching yes no (only limited switch)