Hack

Summary

Hack is a dialect of PHP developed by Facebook that adds static typing, generics, and other features while maintaining compatibility with PHP. It runs on the HipHop Virtual Machine (HHVM) and offers improved performance and type safety.

Paradigms

imperative, object-oriented, functional, structured

Domains

web development, server-side applications

Key Features

algebraic data types, type inference, traits/interfaces, async/await, generics

Typing

gradual system, structural typing, weak typing, full inference, compile-time checking, conservative type coercion, optional type annotations

Compilation

compiled, interpreted with JIT compilation

Influenced By

PHP, OCaml, TypeScript, Scala, C#, Haskell, Java

Ratings

File extensions

hack, hh, hhi, php

External Links

• Hack official site
• Hack jobs at Devjobsscanner
• Trending GitHub repositories