Prompts Improved

Node.js promots like you always wanted. Style them to your heart's content using Chalk, an amazing CLI package for colors and text styling. Features include:

• Default options
• Input validation (using regexe's or functions)
• Input filters (both before validation and after)
• Required fields
• Input attempt limits (think limiting password tries)
• Ask single or multiple questions
• When asking multiple questions, subsequent questions can be dependant on previous input. This allows for simple prompt path logic.
• Configurable prefixs and suffixes
• Custom error messaging
• Input timeouts
• Per-prompt configuration
• Convient error handeling
• 100% test coverage
• (Coming Soon) Multiple choice questions

Examples

Just ask your user a question:

var Prompt = require('prompt-imporved');

var prompt = new Prompt({
	// Some options for all prompts
	prefix: '[?] ',
	prefixTheme: Prompt.chalk.green
});

prompt.ask('Where in the world is Carmen Sandiego?', function(err, res) {
	if (err) return console.error(err); // err is null if no errors
	console.log('Response: ' + res);
});

// Outputs: [?] Where in the world is Carmen Sandiego?: 

Options can be provided for all prompts or overridden on a per-prompt basis:

var Prompt = require('prompt-imporved');

var prompt = new Prompt({
	suffix: '? '
});

prompt.ask('How is your day going beautiful', function(err, res) {
	if (err) return console.error(err);
	console.log('Response: ' + res);
});

// Outputs: How is your day going beautiful?  

Asking multiple questions:

var Prompt = require('prompt-imporved');
var prompt = new Prompt();
prompt.ask([{
	question: 'Who\'s your daddy?',
	key: 'father',
}, {
	question: 'What is your Mothers name?',
}], function(err, res) {
	if (err) return console.error(err);
	console.log('Father\'s name: ' res.father);
	console.log('Mother\'s name: ' res['What is your Mothers name?']);
});

Full example will all options:

var Prompt = require('prompt-imporved');

// These are all the defaults
var prompt = new Prompt({
	prefix        : '',
	suffix        : ': ',
	defaultPrefix : ' (',
	defaultSuffix : ')',
	textTheme     : Prompt.chalk.bold,
	prefixTheme   : Prompt.chalk.white,
	suffixTheme   : Prompt.chalk.white,
	defaultTheme  : Prompt.chalk.white,
	inputError    : 'Error encountered, try again.',
	requiredError : 'Required! Try again.',
	invalidError  : 'Invalid input: ',
	attemptsError : 'Maximum attempts reached!',
	stdin         : process.stdin,
	stdout        : process.stdout,
	stderr        : process.stderr,
	timeout       : null
});

// Each question can have it's own options
prompt.ask([{
	question: 'A yes or no question',
	key: 'answer-key',
	attempts: 3,
	required: true,
	default: 'Y',
	validate: /^(?:y(?:es)?|n(?:o)?)$/i,
	after: function(value) {
		value = value.toLowerCase();
		if (value === 'y' || value === 'yes') return true;
		return false;
	}
}{
	question: 'Something where the first letter should be uppercase',
	key: 'answer-key1',
	before: function(val) {
		return val.charAt(0).toUpperCase() + val.slice(1);
	},
	depends: function(answers) {
		return !!answers['answer-key'];
	}
}], function(err, res) {
	if (err) return console.error(err);
	console.log('Response: ' + res);
});

Tests

Unit tests and test coverage are available:

// runs the tests and watches for file changes
$ grunt 

// Runs the coverage generator and opens your borwser to the results
$ grunt coverage

Contributions

Please contribute. Please make pull requests against the develop branch.