内置模块

【Built-in modules】

Node.js 有几个模块被编译进二进制文件。这些模块在本文档的其他部分有更详细的描述。

【Node.js has several modules compiled into the binary. These modules are described in greater detail elsewhere in this documentation.】

内置模块是在 Node.js 源码中定义的，位于 lib/ 文件夹中。

【The built-in modules are defined within the Node.js source and are located in the lib/ folder.】

内置模块可以使用 node: 前缀来识别，在这种情况下，它会绕过 require 缓存。例如，即使存在同名的 require.cache 条目，require('node:http') 也总是会返回内置的 HTTP 模块。

【Built-in modules can be identified using the node: prefix, in which case it bypasses the require cache. For instance, require('node:http') will always return the built in HTTP module, even if there is require.cache entry by that name.】

如果将某些内置模块的标识符传递给 require()，这些模块总是优先加载。例如，require('http') 将始终返回内置的 HTTP 模块，即使存在同名的文件。

【Some built-in modules are always preferentially loaded if their identifier is passed to require(). For instance, require('http') will always return the built-in HTTP module, even if there is a file by that name.】

所有内置模块的列表可以从 module.builtinModules 获取。模块列表中均未带 node: 前缀，除了那些必须使用该前缀的模块（如下一节所述）。

【The list of all the built-in modules can be retrieved from module.builtinModules. The modules being all listed without the node: prefix, except those that mandate such prefix (as explained in the next section).】