Question object, used by Enquirer and prompt plugins.
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README.md

prompt-question NPM version NPM monthly downloads NPM total downloads Linux Build Status

Question object, used by Enquirer and prompt plugins.

Install

Install with npm:

$ npm install --save prompt-question

Usage

The main export is a constructor function that is used to create new Question objects, which are used in prompts by [base-prompt][].

var Question = require('prompt-question');
var question = new Question('color', 'What is favorite color?');

Examples

Any of the following signatures may be used:

var question = new Question('color'); // sets message as the same value as `name`
var question = new Question('color', 'What is favorite color?');
var question = new Question('color', {message: 'What is favorite color?'});
var question = new Question({name: 'color', message: 'What is favorite color?'});
var question = new Question({name: 'color'});

API

Question

Create a new question with the given name, message and options.

Params

  • name {String|Object}: Question name or options.
  • message {String|Object}: Question message or options.
  • options {String|Object}: Question options.

Example

var question = new Question('first', 'What is your first name?');
console.log(question);
// {
//   type: 'input',
//   name: 'color',
//   message: 'What is your favorite color?'
// }

.clone

Clone the question instance.

  • returns {Object}: Returns the cloned question

Example

var clonedQuestion = question.clone();

.addChoices

Add formatted choice objects to the question.choices array. See prompt-choices for more details.

Params

  • choices {String|Array}: One or more choices to add.
  • returns {Object}: Returns the question instance for chaining

Example

question.addChoices(['foo', 'bar', 'baz']);

.addChoice

Add a choice to question.choices array. See prompt-choices for more details.

Params

  • choice {String|Object}
  • returns {Object}: Returns the question instance for chaining

Example

question.addChoice('foo');

.getDefault

Returns the given val or question.default if val is undefined or null.

Params

  • val {any}
  • returns {any}

Example

var question = new Question({
  name: 'first',
  message: 'First name'?,
  default: 'Bob'
});

console.log(question.getAnswer());
//=> 'Bob'
console.log(question.getAnswer('Joe'));
//=> 'Joe'
console.log(question.getAnswer(false));
//=> false
console.log(question.getAnswer(0));
//=> 0

.getChoice

Get the given choice from questions.choices.

Params

  • val {any}
  • returns {any}

Example

var Question = require('prompt-question');
var question = new Question('color', 'What is your favorite color?', {
  choices: ['red', 'blue', 'yellow']
});
console.log(question.getChoice('red'));
//=> Choice { name: 'red', short: 'red', value: 'red', checked: false }

.separator

Create a separator using choices-separator.

.hasDefault

Getter that returns true if a default value has been defined.

  • returns {Boolean}: True if a default value is defined.

.checkbox

Getter/setter for the checkbox symbols to use.

  • returns {Object}: Checkbox object with .on, .off and .disabled properties.

Example

var question = new Question({
  name: 'foo',
  checkbox: {off: '[ ]', on: '[x]', disabled: 'X'}
});
// or
question.checkbox = {off: '[ ]', on: '[x]', disabled: 'X'};

.choices

Getter/setter for getting and setting choices (if applicable).

Example

var question = new Question();
question.choices = ['a', 'b', 'c'];

.Question.isQuestion

Static method that returns true if question is a valid question object.

Params

  • question {Object}
  • returns {Boolean}

Example

console.log(Question.isQuestion('foo'));
//=> false
console.log(Question.isQuestion(new Question('What is your name?')));
//=> true

.Question.choices

Static method for creating a new Choices object. See prompt-choices for more details.

Params

  • choices {Array}: Array of choices
  • returns {Object}: Returns an intance of Choices.

Example

var choices = new Question.Choices(['foo', 'bar', 'baz']);

.Question.Separator

Static method for creating a new Separator object. See choices-separator for more details.

Params

  • separator {String}: Optionally pass a string to use as the separator.
  • returns {Object}: Returns a separator object.

Example

new Question.Separator();

Release history

v5.0.0

  • Support .choices as a function

v4.0.0

v3.0.0

v2.0.0

  • bumps prompt-choices. A major bump was warranted due to potentially breaking changes in prompt-choices. Please see that library for more details.

About

Related projects

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

Please read the contributing guide for advice on opening issues, pull requests, and coding standards.

Building docs

(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)

To generate the readme, run the following command:

$ npm install -g verbose/verb#dev verb-generate-readme && verb

Running tests

Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:

$ npm install && npm test

Author

Jon Schlinkert

License

Copyright © 2017, Jon Schlinkert. Released under the MIT License.


This file was generated by verb-generate-readme, v0.6.0, on July 08, 2017.