命令与特殊键

所有 REPL 实例都支持以下特殊命令：

• .break:
• .clear: 将 REPL context 重置为空对象并清除任何输入的多行表达式。
• .exit: 关闭 I/O 流，导致 REPL 退出。
• .help: 显示此特殊命令列表。
• .save: 将当前 REPL 会话保存到文件：> .save ./file/to/save.js
• .load: 将文件加载到当前 REPL 会话中。 > .load ./file/to/load.js
• .editor:

> .editor
// 进入编辑器模式（^D 完成，^C 取消）
function welcome(name) {
  return `Hello ${name}!`;
}

welcome('Node.js User');

// ^D
'Hello Node.js User!'
>

REPL 中的以下组合键具有这些特殊效果：

• <ctrl>-C: 当在空白行上按两次时，效果与 .exit 命令相同。
• <ctrl>-D:
• <tab>: 当在输入其他输入时按下时，显示相关的自动完成选项。

有关反向搜索的键绑定，请参阅 reverse-i-search。 对于所有其他键绑定，请参阅 TTY 键绑定。

The following special commands are supported by all REPL instances:

• .break: When in the process of inputting a multi-line expression, entering the .break command (or pressing the <ctrl>-C key combination) will abort further input or processing of that expression.
• .clear: Resets the REPL context to an empty object and clears any multi-line expression being input.
• .exit: Close the I/O stream, causing the REPL to exit.
• .help: Show this list of special commands.
• .save: Save the current REPL session to a file: > .save ./file/to/save.js
• .load: Load a file into the current REPL session. > .load ./file/to/load.js
• .editor: Enter editor mode (<ctrl>-D to finish, <ctrl>-C to cancel).

> .editor
// Entering editor mode (^D to finish, ^C to cancel)
function welcome(name) {
  return `Hello ${name}!`;
}

welcome('Node.js User');

// ^D
'Hello Node.js User!'
>

The following key combinations in the REPL have these special effects:

• <ctrl>-C: When pressed once, has the same effect as the .break command. When pressed twice on a blank line, has the same effect as the .exit command.
• <ctrl>-D: Has the same effect as the .exit command.
• <tab>: When pressed on a blank line, displays global and local (scope) variables. When pressed while entering other input, displays relevant autocompletion options.

For key bindings related to the reverse-i-search, see reverse-i-search. For all other key bindings, see TTY keybindings.