Hack Documentation

Learn

• Getting Started

  教你如何安装 Hack 来运行你的第一个程序，同时也会介绍一些工具。

• Source Code Fundamentals

  基础语法、命名空间、自动加载。

• Expressions And Operators

  表达式、运算符、关联性和优先级。

• Statements

  简单的语句、代码块和循环。

• Functions

  命名函数、匿名函数以及函数参数。

• Classes

  类、接口和 trait。

• Types

  类型检查器。

• Built In Types

  类型检查器支持的原生数据类型。

• Generics

  Generic types, where constraints, and variance.

• Asynchronous Operations

  Asynchronous functions, await, and the concurrent keyword.

• Attributes

  Attaching metadata to Hack programs, built-in attributes and defining your own.

• XHP

  Safe, composable HTML templating.

• Silencing Errors

  HH_FIXME best practices and error codes.

Built-in API Reference

Full reference docs for all functions, classes, interfaces, and traits in the Hack language.

Standard Library API Reference

Full reference docs for all functions, classes, interfaces, and traits in the Hack Standard Library.