repl.start([options])
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prompt<string> 要显示的输入提示。默认值:'> '(尾随空格)。¥
prompt<string> The input prompt to display. Default:'> '(with a trailing space). -
input<stream.Readable> 将从中读取 REPL 输入的Readable流。默认值:process.stdin。¥
input<stream.Readable> TheReadablestream from which REPL input will be read. Default:process.stdin. -
output<stream.Writable> REPL 输出将写入的Writable流。默认值:process.stdout。¥
output<stream.Writable> TheWritablestream to which REPL output will be written. Default:process.stdout. -
terminal<boolean> 如果true,则指定output应被视为 TTY 终端。默认值:在实例化时检查output流上isTTY属性的值。¥
terminal<boolean> Iftrue, specifies that theoutputshould be treated as a TTY terminal. Default: checking the value of theisTTYproperty on theoutputstream upon instantiation. -
eval<Function> 当评估每一给定输入行时要使用的函数。默认值:JavaScripteval()函数的异步封装器。eval函数可能会出现repl.Recoverable错误,表明输入不完整并提示输入额外的行。有关更多详细信息,请参阅 自定义评估函数 部分。¥
eval<Function> The function to be used when evaluating each given line of input. Default: an async wrapper for the JavaScripteval()function. Anevalfunction can error withrepl.Recoverableto indicate the input was incomplete and prompt for additional lines. See the custom evaluation functions section for more details. -
useColors<boolean> 如果为true,则指定默认的writer函数应在 REPL 输出中包含 ANSI 颜色样式。如果提供了自定义writer函数,则此功能无效。默认值:如果 REPL 实例的terminal值为true,则检查output流上的颜色支持。¥
useColors<boolean> Iftrue, specifies that the defaultwriterfunction should include ANSI color styling to REPL output. If a customwriterfunction is provided then this has no effect. Default: checking color support on theoutputstream if the REPL instance'sterminalvalue istrue. -
useGlobal<boolean> 如果为true,则指定默认评估函数将使用 JavaScriptglobal作为上下文,而不是为 REPL 实例创建新的单独上下文。node CLI REPL 将此值设置为true。默认值:false。¥
useGlobal<boolean> Iftrue, specifies that the default evaluation function will use the JavaScriptglobalas the context as opposed to creating a new separate context for the REPL instance. The node CLI REPL sets this value totrue. Default:false. -
ignoreUndefined<boolean> 如果为true,则指定默认编写器在计算结果为undefined时不会输出命令的返回值。默认值:false。¥
ignoreUndefined<boolean> Iftrue, specifies that the default writer will not output the return value of a command if it evaluates toundefined. Default:false. -
writer<Function> 在写入output之前调用以格式化每个命令的输出的函数。默认值:util.inspect()。¥
writer<Function> The function to invoke to format the output of each command before writing tooutput. Default:util.inspect(). -
completer<Function> 用于自定义 Tab 自动补齐的可选函数。有关示例,请参见readline.InterfaceCompleter。¥
completer<Function> An optional function used for custom Tab auto completion. Seereadline.InterfaceCompleterfor an example. -
replMode<symbol> 指定默认求值器是在严格模式还是默认(宽松)模式下执行所有 JavaScript 命令的标志。可接受的值是:¥
replMode<symbol> A flag that specifies whether the default evaluator executes all JavaScript commands in strict mode or default (sloppy) mode. Acceptable values are:-
repl.REPL_MODE_SLOPPY在宽松模式下计算表达式。¥
repl.REPL_MODE_SLOPPYto evaluate expressions in sloppy mode. -
repl.REPL_MODE_STRICT在严格模式下计算表达式。这相当于在每个 repl 语句前面加上'use strict'。¥
repl.REPL_MODE_STRICTto evaluate expressions in strict mode. This is equivalent to prefacing every repl statement with'use strict'.
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breakEvalOnSigint<boolean> 当收到SIGINT时,例如按下 Ctrl+C 时,停止评估当前代码段。这不能与自定义eval函数一起使用。默认值:false。¥
breakEvalOnSigint<boolean> Stop evaluating the current piece of code whenSIGINTis received, such as when Ctrl+C is pressed. This cannot be used together with a customevalfunction. Default:false. -
preview<boolean> 定义 repl 是否打印自动补齐和输出预览。默认值:true使用默认 eval 函数,false如果使用自定义 eval 函数。如果terminal为假,则没有预览,preview的值没有影响。¥
preview<boolean> Defines if the repl prints autocomplete and output previews or not. Default:truewith the default eval function andfalsein case a custom eval function is used. Ifterminalis falsy, then there are no previews and the value ofpreviewhas no effect.
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¥Returns: <repl.REPLServer>
repl.start() 方法创建并启动了一个 repl.REPLServer 实例。
¥The repl.start() method creates and starts a repl.REPLServer instance.
如果 options 是字符串,则指定输入提示:
¥If options is a string, then it specifies the input prompt:
import repl from 'node:repl';
// a Unix style prompt
repl.start('$ ');const repl = require('node:repl');
// a Unix style prompt
repl.start('$ ');