Stylish CLI prompts that are user-friendly, intuitive and easy to create.
>_ Prompts should be more like conversations than inquisitions▌
(Example shows Enquirer's Survey Prompt)
The terminal in all examples is Hyper, theme is hyper-monokai-extended.
Created by jonschlinkert and doowb, Enquirer is fast, easy to use, and lightweight enough for small projects, while also being powerful and customizable enough for the most advanced use cases.
If you like Enquirer, please consider starring or tweeting about this project to show your support. Thanks!
>_ Ready to start making prompts your users will love? ▌
Get started with Enquirer, the most powerful and easy-to-use Node.js library for creating interactive CLI prompts.
Install with npm:
npm install enquirer --save
Install with yarn:
(Requires Node.js 8.6 or higher. Please let us know if you need support for an earlier version by creating an issue.)
The easiest way to get started with enquirer is to pass a question object to the prompt method.
const { prompt } = require('enquirer');
const response = await prompt({
type: 'input',
name: 'username',
message: 'What is your username?'
});
console.log(response); // { username: 'jonschlinkert' }
(Examples with await need to be run inside an async function)
Pass an array of "question" objects to run a series of prompts.
const response = await prompt([
{
type: 'input',
name: 'name',
message: 'What is your name?'
},
{
type: 'input',
name: 'username',
message: 'What is your username?'
}
]);
console.log(response); // { name: 'Edward Chan', username: 'edwardmchan' } Different ways to run enquirer 1. By importing the specific built-in prompt
const { Confirm } = require('enquirer');
const prompt = new Confirm({
name: 'question',
message: 'Did you like enquirer?'
});
prompt.run()
.then(answer => console.log('Answer:', answer)); 2. By passing the options to prompt
const { prompt } = require('enquirer');
prompt({
type: 'confirm',
name: 'question',
message: 'Did you like enquirer?'
})
.then(answer => console.log('Answer:', answer));
Jump to: Getting Started · Prompts · Options · Key Bindings
Enquirer is a prompt runner
Add Enquirer to your JavaScript project with following line of code.
const Enquirer = require('enquirer');
The main export of this library is the Enquirer class, which has methods and features designed to simplify running prompts.
const { prompt } = require('enquirer');
const questions = [
{
type: 'input',
name: 'username',
message: 'What is your username?'
},
{
type: 'password',
name: 'password',
message: 'What is your password?'
}
];
const answers = await prompt(questions);
console.log(answers);
Prompts control how values are rendered and returned
Each individual prompt is a class with special features and functionality for rendering the types of values you want to show users in the terminal, and subsequently returning the types of values you need to use in your application.
How can I customize prompts?
Below in this guide you will find information about creating custom prompts. For now, we'll focus on how to customize an existing prompt.
All of the individual prompt classes in this library are exposed as static properties on Enquirer. This allows them to be used directly without using enquirer.prompt().
Use this approach if you need to modify a prompt instance, or listen for events on the prompt.
Example
const { Input } = require('enquirer');
const prompt = new Input({
name: 'username',
message: 'What is your username?'
});
prompt.run()
.then(answer => console.log('Username:', answer))
.catch(console.error);
Create an instance of Enquirer.
Params
options {Object}: (optional) Options to use with all prompts.answers {Object}: (optional) Answers object to initialize with.Example
const Enquirer = require('enquirer');
const enquirer = new Enquirer();
Register a custom prompt type.
Params
type {String}fn {Function|Prompt}: Prompt class, or a function that returns a Prompt class.returns {Object}: Returns the Enquirer instanceExample
const Enquirer = require('enquirer');
const enquirer = new Enquirer();
enquirer.register('customType', require('./custom-prompt'));
Prompt function that takes a "question" object or array of question objects, and returns an object with responses from the user.
Params
questions {Array|Object}: Options objects for one or more prompts to run.returns {Promise}: Promise that returns an "answers" object with the user's responses.Example
const Enquirer = require('enquirer');
const enquirer = new Enquirer();
const response = await enquirer.prompt({
type: 'input',
name: 'username',
message: 'What is your username?'
});
console.log(response);
Use an enquirer plugin.
Params
plugin {Function}: Plugin function that takes an instance of Enquirer.returns {Object}: Returns the Enquirer instance.Example
const Enquirer = require('enquirer');
const enquirer = new Enquirer();
const plugin = enquirer => {
// do stuff to enquire instance
};
enquirer.use(plugin);
Prompt function that takes a "question" object or array of question objects, and returns an object with responses from the user.
Params
questions {Array|Object}: Options objects for one or more prompts to run.returns {Promise}: Promise that returns an "answers" object with the user's responses.Example
const { prompt } = require('enquirer');
const response = await prompt({
type: 'input',
name: 'username',
message: 'What is your username?'
});
console.log(response);
This section is about Enquirer's prompts: what they look like, how they work, how to run them, available options, and how to customize the prompts or create your own prompt concept.
Getting started with Enquirer's prompts
Prompt class used by other prompts
Prompt class used by other promptsThe base Prompt class is used to create all other prompts.
const { Prompt } = require('enquirer');
class MyCustomPrompt extends Prompt {}
See the documentation for creating custom prompts to learn more about how this works.
Each prompt takes an options object (aka "question" object), that implements the following interface:
{
// required
type: string | function,
name: string | function,
message: string | function | async function,
// optional
skip: boolean | function | async function,
initial: string | function | async function,
format: function | async function,
result: function | async function,
validate: function | async function,
}
Each property of the options object is described below:
Property Required? Type Descriptiontype yes string|function Enquirer uses this value to determine the type of prompt to run, but it's optional when prompts are run directly. name yes string|function Used as the key for the answer on the returned values (answers) object. message yes string|function The message to display when the prompt is rendered in the terminal. skip no boolean|function If true it will not ask that prompt. initial no string|function The default value to return if the user does not supply a value. format no function Function to format user input in the terminal. result no function Function to format the final submitted value before it's returned. validate no function Function to validate the submitted value before it's returned. This function may return a boolean or a string. If a string is returned it will be used as the validation error message.
Example usage
const { prompt } = require('enquirer');
const question = {
type: 'input',
name: 'username',
message: 'What is your username?'
};
prompt(question)
.then(answer => console.log('Answer:', answer))
.catch(console.error);
Prompt that auto-completes as the user types, and returns the selected value as a string.
Example Usage
const { AutoComplete } = require('enquirer');
const prompt = new AutoComplete({
name: 'flavor',
message: 'Pick your favorite flavor',
limit: 10,
initial: 2,
choices: [
'Almond',
'Apple',
'Banana',
'Blackberry',
'Blueberry',
'Cherry',
'Chocolate',
'Cinnamon',
'Coconut',
'Cranberry',
'Grape',
'Nougat',
'Orange',
'Pear',
'Pineapple',
'Raspberry',
'Strawberry',
'Vanilla',
'Watermelon',
'Wintergreen'
]
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
AutoComplete Options
Option Type Default Descriptionhighlight function dim version of primary style The color to use when "highlighting" characters in the list that match user input. multiple boolean false Allow multiple choices to be selected. suggest function Greedy match, returns choices where choice.message contains the input string. Function that filters choices. Takes user input and a choices array, and returns a list of matching choices. initial number 0 Preselected item in the list of choices. footer function None Function that displays footer text
Related prompts
↑ back to: Getting Started · Prompts
Prompt that asks for username and password to authenticate the user. The default implementation of authenticate function in BasicAuth prompt is to compare the username and password with the values supplied while running the prompt. The implementer is expected to override the authenticate function with a custom logic such as making an API request to a server to authenticate the username and password entered and expect a token back.
Example Usage
const { BasicAuth } = require('enquirer');
const prompt = new BasicAuth({
name: 'password',
message: 'Please enter your password',
username: 'rajat-sr',
password: '123',
showPassword: true
});
prompt
.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
↑ back to: Getting Started · Prompts
Prompt that returns true or false.
Example Usage
const { Confirm } = require('enquirer');
const prompt = new Confirm({
name: 'question',
message: 'Want to answer?'
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
Prompt that allows the user to enter and submit multiple values on a single terminal screen.
Example Usage
const { Form } = require('enquirer');
const prompt = new Form({
name: 'user',
message: 'Please provide the following information:',
choices: [
{ name: 'firstname', message: 'First Name', initial: 'Jon' },
{ name: 'lastname', message: 'Last Name', initial: 'Schlinkert' },
{ name: 'username', message: 'GitHub username', initial: 'jonschlinkert' }
]
});
prompt.run()
.then(value => console.log('Answer:', value))
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
Prompt that takes user input and returns a string.
Example Usage
const { Input } = require('enquirer');
const prompt = new Input({
message: 'What is your username?',
initial: 'jonschlinkert'
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.log);
You can use data-store to store input history that the user can cycle through (see source).
Related prompts
↑ back to: Getting Started · Prompts
Prompt that takes user input, hides it from the terminal, and returns a string.
Example Usage
const { Invisible } = require('enquirer');
const prompt = new Invisible({
name: 'secret',
message: 'What is your secret?'
});
prompt.run()
.then(answer => console.log('Answer:', { secret: answer }))
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
Prompt that returns a list of values, created by splitting the user input. The default split character is , with optional trailing whitespace.
Example Usage
const { List } = require('enquirer');
const prompt = new List({
name: 'keywords',
message: 'Type comma-separated keywords'
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
Prompt that allows the user to select multiple items from a list of options.
Example Usage
const { MultiSelect } = require('enquirer');
const prompt = new MultiSelect({
name: 'value',
message: 'Pick your favorite colors',
limit: 7,
choices: [
{ name: 'aqua', value: '#00ffff' },
{ name: 'black', value: '#000000' },
{ name: 'blue', value: '#0000ff' },
{ name: 'fuchsia', value: '#ff00ff' },
{ name: 'gray', value: '#808080' },
{ name: 'green', value: '#008000' },
{ name: 'lime', value: '#00ff00' },
{ name: 'maroon', value: '#800000' },
{ name: 'navy', value: '#000080' },
{ name: 'olive', value: '#808000' },
{ name: 'purple', value: '#800080' },
{ name: 'red', value: '#ff0000' },
{ name: 'silver', value: '#c0c0c0' },
{ name: 'teal', value: '#008080' },
{ name: 'white', value: '#ffffff' },
{ name: 'yellow', value: '#ffff00' }
]
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
// Answer: ['aqua', 'blue', 'fuchsia']
Example key-value pairs
Optionally, pass a result function and use the .map method to return an object of key-value pairs of the selected names and values: example
const { MultiSelect } = require('enquirer');
const prompt = new MultiSelect({
name: 'value',
message: 'Pick your favorite colors',
limit: 7,
choices: [
{ name: 'aqua', value: '#00ffff' },
{ name: 'black', value: '#000000' },
{ name: 'blue', value: '#0000ff' },
{ name: 'fuchsia', value: '#ff00ff' },
{ name: 'gray', value: '#808080' },
{ name: 'green', value: '#008000' },
{ name: 'lime', value: '#00ff00' },
{ name: 'maroon', value: '#800000' },
{ name: 'navy', value: '#000080' },
{ name: 'olive', value: '#808000' },
{ name: 'purple', value: '#800080' },
{ name: 'red', value: '#ff0000' },
{ name: 'silver', value: '#c0c0c0' },
{ name: 'teal', value: '#008080' },
{ name: 'white', value: '#ffffff' },
{ name: 'yellow', value: '#ffff00' }
],
result(names) {
return this.map(names);
}
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
// Answer: { aqua: '#00ffff', blue: '#0000ff', fuchsia: '#ff00ff' }
Example alternate labels
const { MultiSelect } = require('enquirer');
const prompt = new MultiSelect({
name: 'color',
message: 'Pick a flavor',
choices: [
{ message: 'Negative Red', name: 'cyan', value: '#00ffff' },
{ message: 'Lights Out', name: 'black', value: '#000000' },
{ message: 'The Ocean', name: 'blue', value: '#0000ff' },
]
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
Prompt that takes a number as input.
Example Usage
const { NumberPrompt } = require('enquirer');
const prompt = new NumberPrompt({
name: 'number',
message: 'Please enter a number'
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
Prompt that takes user input and masks it in the terminal. Also see the invisible prompt
Example Usage
const { Password } = require('enquirer');
const prompt = new Password({
name: 'password',
message: 'What is your password?'
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
Prompt that allows the user to play multiple-choice quiz questions.
Example Usage
const { Quiz } = require('enquirer');
const prompt = new Quiz({
name: 'countries',
message: 'How many countries are there in the world?',
choices: ['165', '175', '185', '195', '205'],
correctChoice: 3
});
prompt
.run()
.then(answer => {
if (answer.correct) {
console.log('Correct!');
} else {
console.log(`Wrong! Correct answer is ${answer.correctAnswer}`);
}
})
.catch(console.error);
Quiz Options
Option Type Required Descriptionchoices array Yes The list of possible answers to the quiz question. correctChoice number Yes Index of the correct choice from the choices array.
↑ back to: Getting Started · Prompts
Prompt that allows the user to provide feedback for a list of questions.
Example Usage
const { Survey } = require('enquirer');
const prompt = new Survey({
name: 'experience',
message: 'Please rate your experience',
scale: [
{ name: '1', message: 'Strongly Disagree' },
{ name: '2', message: 'Disagree' },
{ name: '3', message: 'Neutral' },
{ name: '4', message: 'Agree' },
{ name: '5', message: 'Strongly Agree' }
],
margin: [0, 0, 2, 1],
choices: [
{
name: 'interface',
message: 'The website has a friendly interface.'
},
{
name: 'navigation',
message: 'The website is easy to navigate.'
},
{
name: 'images',
message: 'The website usually has good images.'
},
{
name: 'upload',
message: 'The website makes it easy to upload images.'
},
{
name: 'colors',
message: 'The website has a pleasing color palette.'
}
]
});
prompt.run()
.then(value => console.log('ANSWERS:', value))
.catch(console.error);
Related prompts
A more compact version of the Survey prompt, the Scale prompt allows the user to quickly provide feedback using a Likert Scale.
Example Usage
const { Scale } = require('enquirer');
const prompt = new Scale({
name: 'experience',
message: 'Please rate your experience',
scale: [
{ name: '1', message: 'Strongly Disagree' },
{ name: '2', message: 'Disagree' },
{ name: '3', message: 'Neutral' },
{ name: '4', message: 'Agree' },
{ name: '5', message: 'Strongly Agree' }
],
margin: [0, 0, 2, 1],
choices: [
{
name: 'interface',
message: 'The website has a friendly interface.',
initial: 2
},
{
name: 'navigation',
message: 'The website is easy to navigate.',
initial: 2
},
{
name: 'images',
message: 'The website usually has good images.',
initial: 2
},
{
name: 'upload',
message: 'The website makes it easy to upload images.',
initial: 2
},
{
name: 'colors',
message: 'The website has a pleasing color palette.',
initial: 2
}
]
});
prompt.run()
.then(value => console.log('ANSWERS:', value))
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
Prompt that allows the user to select from a list of options.
Example Usage
const { Select } = require('enquirer');
const prompt = new Select({
name: 'color',
message: 'Pick a flavor',
choices: ['apple', 'grape', 'watermelon', 'cherry', 'orange']
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
Example key-value pairs
const { Select } = require('enquirer');
const prompt = new Select({
name: 'color',
message: 'Pick a color',
choices: [
{ name: 'cyan', value: '#00ffff' },
{ name: 'black', value: '#000000' },
{ name: 'blue', value: '#0000ff' },
]
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
Example alternate labels
const { Select } = require('enquirer');
const prompt = new Select({
name: 'color',
message: 'Pick a color',
choices: [
{ message: 'Negative Red', name: 'cyan', value: '#00ffff' },
{ message: 'Lights Out', name: 'black', value: '#000000' },
{ message: 'The Ocean', name: 'blue', value: '#0000ff' },
]
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
Prompt that allows the user to sort items in a list.
Example
In this example, custom styling is applied to the returned values to make it easier to see what's happening.
Example Usage
const colors = require('ansi-colors');
const { Sort } = require('enquirer');
const prompt = new Sort({
name: 'colors',
message: 'Sort the colors in order of preference',
hint: 'Top is best, bottom is worst',
numbered: true,
choices: ['red', 'white', 'green', 'cyan', 'yellow'].map(n => ({
name: n,
message: colors[n](n)
}))
});
prompt.run()
.then(function(answer = []) {
console.log(answer);
console.log('Your preferred order of colors is:');
console.log(answer.map(key => colors[key](key)).join('\n'));
})
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
Prompt that allows the user to replace placeholders in a snippet of code or text.
Example Usage
const semver = require('semver');
const { Snippet } = require('enquirer');
const prompt = new Snippet({
name: 'username',
message: 'Fill out the fields in package.json',
required: true,
fields: [
{
name: 'author_name',
message: 'Author Name'
},
{
name: 'version',
validate(value, state, item, index) {
if (item && item.name === 'version' && !semver.valid(value)) {
return prompt.styles.danger('version should be a valid semver value');
}
return true;
}
}
],
template: `{
"name": "\${name}",
"description": "\${description}",
"version": "\${version}",
"homepage": "https://github.com/\${username}/\${name}",
"author": "\${author_name} (https://github.com/\${username})",
"repository": "\${username}/\${name}",
"license": "\${license:ISC}"
}
`
});
prompt.run()
.then(answer => console.log('Answer:', answer.result))
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
Prompt that allows the user to toggle between two values then returns true or false.
Example Usage
const { Toggle } = require('enquirer');
const prompt = new Toggle({
message: 'Want to answer?',
enabled: 'Yep',
disabled: 'Nope'
});
prompt.run()
.then(answer => console.log('Answer:', answer))
.catch(console.error);
Related prompts
↑ back to: Getting Started · Prompts
There are 5 (soon to be 6!) type classes:
Each type is a low-level class that may be used as a starting point for creating higher level prompts. Continue reading to learn how.
The ArrayPrompt class is used for creating prompts that display a list of choices in the terminal. For example, Enquirer uses this class as the basis for the Select and Survey prompts.
In addition to the options available to all prompts, Array prompts also support the following options.
Option Required? Type Descriptionautofocus no string|number The index or name of the choice that should have focus when the prompt loads. Only one choice may have focus at a time. stdin no stream The input stream to use for emitting keypress events. Defaults to process.stdin. stdout no stream The output stream to use for writing the prompt to the terminal. Defaults to process.stdout.
Array prompts have the following instance properties and getters.
Property name Type Descriptionchoices array Array of choices that have been normalized from choices passed on the prompt options. cursor number Position of the cursor relative to the user input (string). enabled array Returns an array of enabled choices. focused array Returns the currently selected choice in the visible list of choices. This is similar to the concept of focus in HTML and CSS. Focused choices are always visible (on-screen). When a list of choices is longer than the list of visible choices, and an off-screen choice is focused, the list will scroll to the focused choice and re-render. focused Gets the currently selected choice. Equivalent to prompt.choices[prompt.index]. index number Position of the pointer in the visible list (array) of choices. limit number The number of choices to display on-screen. selected array Either a list of enabled choices (when options.multiple is true) or the currently focused choice. visible string Method Description pointer() Returns the visual symbol to use to identify the choice that currently has focus. The ❯ symbol is often used for this. The pointer is not always visible, as with the autocomplete prompt. indicator() Returns the visual symbol that indicates whether or not a choice is checked/enabled. focus() Sets focus on a choice, if it can be focused.
Array prompts support the choices option, which is the array of choices users will be able to select from when rendered in the terminal.
Type: string|object
Example
const { prompt } = require('enquirer');
const questions = [{
type: 'select',
name: 'color',
message: 'Favorite color?',
initial: 1,
choices: [
{ name: 'red', message: 'Red', value: '#ff0000' }, //<= choice object
{ name: 'green', message: 'Green', value: '#00ff00' }, //<= choice object
{ name: 'blue', message: 'Blue', value: '#0000ff' } //<= choice object
]
}];
let answers = await prompt(questions);
console.log('Answer:', answers.color);
Whether defined as a string or object, choices are normalized to the following interface:
{
name: string;
message: string | undefined;
value: string | undefined;
hint: string | undefined;
disabled: boolean | string | undefined;
}
Example
const question = {
name: 'fruit',
message: 'Favorite fruit?',
choices: ['Apple', 'Orange', 'Raspberry']
};
Normalizes to the following when the prompt is run:
const question = {
name: 'fruit',
message: 'Favorite fruit?',
choices: [
{ name: 'Apple', message: 'Apple', value: 'Apple' },
{ name: 'Orange', message: 'Orange', value: 'Orange' },
{ name: 'Raspberry', message: 'Raspberry', value: 'Raspberry' }
]
};
The following properties are supported on choice objects.
name string The unique key to identify a choice message string The message to display in the terminal. name is used when this is undefined. value string Value to associate with the choice. Useful for creating key-value pairs from user choices. name is used when this is undefined. choices array Array of "child" choices. hint string Help message to display next to a choice. role string Determines how the choice will be displayed. Currently the only role supported is separator. Additional roles may be added in the future (like heading, etc). Please create a [feature request] enabled boolean Enabled a choice by default. This is only supported when options.multiple is true or on prompts that support multiple choices, like MultiSelect. disabled boolean|string Disable a choice so that it cannot be selected. This value may either be true, false, or a message to display. indicator string|function Custom indicator to render for a choice (like a check or radio button).
The AuthPrompt is used to create prompts to log in user using any authentication method. For example, Enquirer uses this class as the basis for the BasicAuth Prompt. You can also find prompt examples in examples/auth/ folder that utilizes AuthPrompt to create OAuth based authentication prompt or a prompt that authenticates using time-based OTP, among others.
AuthPrompt has a factory function that creates an instance of AuthPrompt class and it expects an authenticate function, as an argument, which overrides the authenticate function of the AuthPrompt class.
authenticate() Contain all the authentication logic. This function should be overridden to implement custom authentication logic. The default authenticate function throws an error if no other function is provided.
Auth prompt supports the choices option, which is the similar to the choices used in Form Prompt.
Example
const { AuthPrompt } = require('enquirer');
function authenticate(value, state) {
if (value.username === this.options.username && value.password === this.options.password) {
return true;
}
return false;
}
const CustomAuthPrompt = AuthPrompt.create(authenticate);
const prompt = new CustomAuthPrompt({
name: 'password',
message: 'Please enter your password',
username: 'rajat-sr',
password: '1234567',
choices: [
{ name: 'username', message: 'username' },
{ name: 'password', message: 'password' }
]
});
prompt
.run()
.then(answer => console.log('Authenticated?', answer))
.catch(console.error);
The BooleanPrompt class is used for creating prompts that display and return a boolean value.
const { BooleanPrompt } = require('enquirer');
const prompt = new BooleanPrompt({
header: '========================',
message: 'Do you love enquirer?',
footer: '========================',
});
prompt.run()
.then(answer => console.log('Selected:', answer))
.catch(console.error);
Returns: boolean
The NumberPrompt class is used for creating prompts that display and return a numerical value.
const { NumberPrompt } = require('enquirer');
const prompt = new NumberPrompt({
header: '************************',
message: 'Input the Numbers:',
footer: '************************',
});
prompt.run()
.then(answer => console.log('Numbers are:', answer))
.catch(console.error);
Returns: string|number (number, or number formatted as a string)
The StringPrompt class is used for creating prompts that display and return a string value.
const { StringPrompt } = require('enquirer');
const prompt = new StringPrompt({
header: '************************',
message: 'Input the String:',
footer: '************************'
});
prompt.run()
.then(answer => console.log('String is:', answer))
.catch(console.error);
Returns: string
With Enquirer 2.0, custom prompts are easier than ever to create and use.
How do I create a custom prompt?
Custom prompts are created by extending either:
const { Prompt } = require('enquirer');
class HaiKarate extends Prompt {
constructor(options = {}) {
super(options);
this.value = options.initial || 0;
this.cursorHide();
}
up() {
this.value++;
this.render();
}
down() {
this.value--;
this.render();
}
render() {
this.clear(); // clear previously rendered prompt from the terminal
this.write(`${this.state.message}: ${this.value}`);
}
}
// Use the prompt by creating an instance of your custom prompt class.
const prompt = new HaiKarate({
message: 'How many sprays do you want?',
initial: 10
});
prompt.run()
.then(answer => console.log('Sprays:', answer))
.catch(console.error);
If you want to be able to specify your prompt by type so that it may be used alongside other prompts, you will need to first create an instance of Enquirer.
const Enquirer = require('enquirer');
const enquirer = new Enquirer();
Then use the .register() method to add your custom prompt.
enquirer.register('haikarate', HaiKarate);
Now you can do the following when defining "questions".
let spritzer = require('cologne-drone');
let answers = await enquirer.prompt([
{
type: 'haikarate',
name: 'cologne',
message: 'How many sprays do you need?',
initial: 10,
async onSubmit(name, value) {
await spritzer.activate(value); //<= activate drone
return value;
}
}
]);
These key combinations may be used with all prompts.
command description ctrl + c Cancel the prompt. ctrl + g Reset the prompt to its initial state.These combinations may be used on prompts that support user input (eg. input prompt, password prompt, and invisible prompt).
command description left Move the cursor back one character. right Move the cursor forward one character. ctrl + a Move cursor to the start of the line ctrl + e Move cursor to the end of the line ctrl + b Move cursor back one character ctrl + f Move cursor forward one character ctrl + x Toggle between first and cursor positionThese key combinations may be used on prompts that support user input (eg. input prompt, password prompt, and invisible prompt).
command description ctrl + a Move cursor to the start of the line ctrl + e Move cursor to the end of the line ctrl + b Move cursor back one character ctrl + f Move cursor forward one character ctrl + x Toggle between first and cursor positionThese key combinations may be used on prompts that support multiple choices, such as the multiselect prompt, or the select prompt when the multiple options is true.
options.multiple is true. number Move the pointer to the choice at the given index. Also toggles the selected choice when options.multiple is true. a Toggle all choices to be enabled or disabled. i Invert the current selection of choices. g Toggle the current choice group.
options.multiple is true. up Move the pointer up. down Move the pointer down. ctrl + a Move the pointer to the first visible choice. ctrl + e Move the pointer to the last visible choice. shift + up Scroll up one choice without changing pointer position (locks the pointer while scrolling). shift + down Scroll down one choice without changing pointer position (locks the pointer while scrolling).
Please see CHANGELOG.md.
MacBook Pro, Intel Core i7, 2.5 GHz, 16 GB.
Time it takes for the module to load the first time (average of 3 runs):
enquirer: 4.013ms
inquirer: 286.717ms
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
We're currently working on documentation for the following items. Please star and watch the repository for updates!
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:
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
Jon Schlinkert
Thanks to derhuerst, creator of prompt libraries such as prompt-skeleton, which influenced some of the concepts we used in our prompts.
Copyright © 2018-present, Jon Schlinkert. Released under the MIT License.
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