NOTE: According to the documentation:
Instances of
repl.REPLServerare created using therepl.start()method and should not be created directly using the JavaScriptnewkeyword.
REPLServer cannot be subclassed due to implementation specifics in NodeJS.
The commands registered via replServer.defineCommand().
Specified in the REPL options, this is the function to use for custom Tab auto-completion.
The vm.Context provided to the eval function to be used for JavaScript
evaluation.
A value indicating whether the REPL is currently in "editor mode".
Specified in the REPL options, this is the function to be used when evaluating each
given line of input. If not specified in the REPL options, this is an async wrapper
for the JavaScript eval() function.
Specified in the REPL options, this is a value indicating whether the default writer
function should output the result of a command if it evaluates to undefined.
The Readable stream from which REPL input will be read.
The last evaluation result from the REPL (assigned to the _ variable inside of the REPL).
The last error raised inside the REPL (assigned to the _error variable inside of the REPL).
The Writable stream to which REPL output will be written.
Specified in the REPL options, this is a flag that specifies whether the default eval
function should execute all JavaScript commands in strict mode or default (sloppy) mode.
Possible values are:
repl.REPL_MODE_SLOPPY - evaluates expressions in sloppy mode.repl.REPL_MODE_STRICT - evaluates expressions in strict mode. This is equivalent to
prefacing every repl statement with 'use strict'.A value indicating whether the _ variable has been assigned.
A value indicating whether the _error variable has been assigned.
Specified in the REPL options, this is a value indicating whether the default
writer function should include ANSI color styling to REPL output.
Specified in the REPL options, this is a value indicating whether the default eval
function will use the JavaScript global as the context as opposed to creating a new
separate context for the REPL instance.
Specified in the REPL options, this is the function to invoke to format the output of
each command before writing to outputStream. If not specified in the REPL options,
this will be a wrapper for util.inspect.
events.EventEmitter
readline.Interfacereadline.Interfacereadline.Interfacereadline.Interfacereadline.Interfacereadline.Interfacereadline.InterfaceClears any command that has been buffered but not yet executed.
This method is primarily intended to be called from within the action function for
commands registered using the replServer.defineCommand() method.
Used to add new .-prefixed commands to the REPL instance. Such commands are invoked
by typing a . followed by the keyword.
The command keyword (without a leading . character).
The function to invoke when the command is processed.
Readies the REPL instance for input from the user, printing the configured prompt to a
new line in the output and resuming the input to accept new input.
When multi-line input is being entered, an ellipsis is printed rather than the 'prompt'.
This method is primarily intended to be called from within the action function for
commands registered using the replServer.defineCommand() method.
When true, the cursor placement will not be reset to 0.
Initializes a history log file for the REPL instance. When executing the Node.js binary and using the command line REPL, a history file is initialized by default. However, this is not the case when creating a REPL programmatically. Use this method to initialize a history log file when working with REPL instances programmatically.
The path to the history file
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Provides a customizable Read-Eval-Print-Loop (REPL).
Instances of
repl.REPLServerwill accept individual lines of user input, evaluate those according to a user-defined evaluation function, then output the result. Input and output may be fromstdinandstdout, respectively, or may be connected to any Node.jsstream.Instances of
repl.REPLServersupport automatic completion of inputs, simplistic Emacs-style line editing, multi-line inputs, ANSI-styled output, saving and restoring current REPL session state, error recovery, and customizable evaluation functions.Instances of
repl.REPLServerare created using therepl.start()method and should not be created directly using the JavaScriptnewkeyword.https://nodejs.org/dist/latest-v10.x/docs/api/repl.html#repl_repl