index.js

/* ------------------------------------------------------------ */
/* Source arrays */
/* ------------------------------------------------------------ */


/* Most common syllabes in English language */
var syllabes = [
  'the','ing','er','a','ly','ed','i','es','re','tion','in','e','con','y','ter','ex','al','de','com','o','di','en','an','ty','ry','u',
  'ti','ri','be','per','to','pro','ac','ad','ar','ers','ment','or','tions','ble','der','ma','na','si','un','at','dis','ca','cal','man','ap',
  'po','sion','vi','el','est','la','lar','pa','ture','for','is','mer','pe','ra','so','ta','as','col','fi','ful','get','low','ni','par','son',
  'tle','day','ny','pen','pre','tive','car','ci','mo','an','aus','pi','se','ten','tor','ver','ber','can','dy','et','it','mu','no','ple','cu',
  'fac','fer','gen','ic','land','light','ob','of','pos','tain','den','ings','mag','ments','set','some','sub','sur','ters','tu','af','au','cy','fa','im',
  'li','lo','men','min','mon','op','out','rec','ro','sen','side','tal','tic','ties','ward','age','ba','but','cit','cle','co','cov','daq','dif','ence',
  'ern','eve','hap','ies','ket','lec','main','mar','mis','my','nal','ness','ning','nu','oc','pres','sup','te','ted','tem','tin','tri','tro','up',
];

/* Popular names in several English-speaking countries */
var names = [
  'Abigail','Alice','Amelia','Angelina','Ann',
  'Ashley','Avery','Barbara','Brianna','Camila',
  'Chloe','Dorothy','Elizabeth','Ella','Emily',
  'Emma','Fiona','Florence','Gabrielle','Haley',
  'Hannah','Isabella','Jasmine','Jennifer','Jessica',
  'Juliette','Kate','Leah','Lily','Linda',
  'Lea','Madison','Makayla','Margaret','Maria',
  'Mariana','Mary','Megan','Mia','Olivia',
  'Patricia','Rachel','Samantha','Sarah','Sophie',
  'Susan','Taylor','Valeria','Victoria','Zoe',
  'Alexander','Anthony','Benjamin','Brandon','Carter',
  'Charles','Charlie','Christian','Christopher','Daniel',
  'David','Deven','Dylan','Elijah','Eric',
  'Ethan','Felix','Gabriel','George','Harry',
  'Hudson','Hunter','Jack','Jacob','James',
  'Jason','Jayden','Jeremiah','John','Joseph',
  'Joshua','Justin','Kevin','Liam','Logan',
  'Lucas','Matthew','Michael','Neil','Noah',
  'Oliver','Owen','Raphael','Richard','Robert',
  'Ryan','Samuel','Thomas','Tyler','William'
];

/* Sample colors */
/* TODO: Split them to several palettes and allow choice of which palettes to use, ie. warm, cool, grays, greens, etc. */
var colors = [
  'antiquewhite', 'brown', 'chocolate', 'coral', 'crimson',
  'darkgray', 'darkred', 'darkorange', 'darksalmon',
  'firebrick', 'floralwhite', 'gainsboro', 'gold', 'goldenrod',
  'gray', 'indianred', 'khaki', 'lightcoral', 'lightsalmon', 'lightyellow',
  'maroon', 'mistyrose', 'navajowhite', 'mocassin', 'orange', 'orangered',
  'peru', 'red', 'rosybrown', 'saddlebrown', 'sandybrown', 'sienna',
  'silver', 'slategray', 'tan', 'tomato', 'teal', 'navy', 'black',
];

/* Domain suffixes */
var domains = [
  '.net', '.org', '.edu', '.com',
  '.com', '.com', '.com', '.com',
];

/* Frequency table for word lengths */
var wordLengths = [
  1, 1,
  2, 2, 2, 2, 2, 2, 2,
  3, 3, 3, 3,
  4, 4,
  5
];

/* Frequency table for random syllabes */
var syllabeCounts = [
  10, 15, 20, 25,
  30, 35, 40, 45,
  50, 75, 100, 125,
  150, 175, 175, 175,
];


/* ------------------------------------------------------------ */
/* Utility methods */
/* ------------------------------------------------------------ */

var capitalize = function(str) {
  return str.slice(0,1).toUpperCase() + str.slice(1).toLowerCase();
};

var getWord = function(min, max) {
  var length = wordLengths[Math.floor(Math.random() * 16)];
  if(min && (length < min)) length = min;
  if(max && (length > max)) length = max;
  var word = '';
  for(var i = 0; i < length; ++i) {
    var count = syllabeCounts[Math.floor(Math.random() * 16)];
    word += syllabes[Math.floor(Math.random() * count)];
  }
  return word;
};

var randomElement = function(array) {
  return array[Math.floor(Math.random() * array.length)];
};


/* ---------- ---------- ---------- ---------- ---------- ---------- */
/* Exported methods */
/* ---------- ---------- ---------- ---------- ---------- ---------- */

var fake = {

  user: function() {
    var name = randomElement(names);
    return {
      firstName: name,
      lastName: capitalize(getWord(3)),
      email: (name + '@' + getWord(2) + randomElement(domains)).toLowerCase(),
    };
  },

  word: function() {
    return capitalize(getWord());
  },

  sentence: function(length) {
    if(!length) {
      var length = 4 + Math.floor(Math.random() * 8);
    }
    var ending = (Math.random() < 0.95) ? '.' : (Math.random() < 0.5) ? '!' : '?';
    var result = capitalize(getWord());
    for(var i = 1; i < length; ++i) {
      result += ' ' + getWord();
    }
    return result + ending;
  },

  paragraph: function(length) {
    if(!length) {
      length = 6 + Math.floor(Math.random() * 8);
    }
    var result = fake.sentence();
    for(var i = 1; i < length; ++i) {
      result += ' ' + fake.sentence();
    }
    return result;
  },

  fromArray: function(array) {  
    return randomElement(array);
  },

  color: function() {
    return randomElement(colors);
  },

};

module.exports = fake;