<ul><li>Hack is a programming language created by Meta (previously Facebook) that offers improved efficiency, dependability, and developer productivity for large-scale web development.</li><li>Built on top of PHP, Hack combines the flexibility and fast development capabilities of PHP with the strength of type checking and static typing.</li><li>Key features of Hack include a stable type system, tools for static analysis, and enhanced speed due to just-in-time (JIT) compilation.</li><li>Hack is widely used in web development, and incorporating it into projects can result in expansive, high-performing applications.</li></ul>

Hack: The Language Powering Scalable, High-Performance Web Applications

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