fs.readFileSync(path[, options])

返回 path 的内容。

• path <string> | <Buffer> | <URL> | <integer> filename or file descriptor
• options <Object> | <string>
  • encoding <string> | <null> Default: null
  • flag <string> See support of file system flags. Default: 'r'.
• Returns: <string> | <Buffer>

Returns the contents of the path.

For detailed information, see the documentation of the asynchronous version of this API: fs.readFile().

If the encoding option is specified then this function returns a string. Otherwise it returns a buffer.

Similar to fs.readFile(), when the path is a directory, the behavior of fs.readFileSync() is platform-specific.

import { readFileSync } from 'node:fs';

// macOS, Linux, and Windows
readFileSync('<directory>');
// => [Error: EISDIR: illegal operation on a directory, read <directory>]

//  FreeBSD
readFileSync('<directory>'); // => <data>