pizza.js

var questions = [
  {
    type: 'confirm',
    name: 'toBeDelivered',
    message: 'Is this for delivery?',
    default: false
  },
  {
    type: 'input',
    name: 'phone',
    message: "What's your phone number?",
    validate: function(value) {
      var pass = value.match(
        /^([01]{1})?[-.\s]?\(?(\d{3})\)?[-.\s]?(\d{3})[-.\s]?(\d{4})\s?((?:#|ext\.?\s?|x\.?\s?){1}(?:\d+)?)?$/i
      );
      if (pass) {
        return true;
      }

      return 'Please enter a valid phone number';
    }
  },
  {
    type: 'list',
    name: 'size',
    message: 'What size do you need?',
    choices: ['Large', 'Medium', 'Small'],
    filter: function(val) {
      return val.toLowerCase();
    }
  }
]