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*
* @namespace faker.helpers
*/
var Helpers = function (faker) {
var self = this;
/**
* backword-compatibility
*
* @method faker.helpers.randomize
* @param {array} array
*/
self.randomize = function (array) {
array = array || ["a", "b", "c"];
return faker.random.arrayElement(array);
};
/**
* slugifies string
*
* @method faker.helpers.slugify
* @param {string} string
*/
self.slugify = function (string) {
string = string || "";
return string.replace(/ /g, '-').replace(/[^\w\.\-]+/g, '');
};
/**
* parses string for a symbol and replace it with a random number from 1-10
*
* @method faker.helpers.replaceSymbolWithNumber
* @param {string} string
* @param {string} symbol defaults to `"#"`
*/
self.replaceSymbolWithNumber = function (string, symbol) {
string = string || "";
// default symbol is '#'
if (symbol === undefined) {
symbol = '#';
}
var str = '';
for (var i = 0; i < string.length; i++) {
if (string.charAt(i) == symbol) {
str += faker.random.number(9);
} else if (string.charAt(i) == "!"){
str += faker.random.number({min: 2, max: 9});
} else {
str += string.charAt(i);
}
}
return str;
};
/**
* parses string for symbols (numbers or letters) and replaces them appropriately (# will be replaced with number,
* ? with letter and * will be replaced with number or letter)
*
* @method faker.helpers.replaceSymbols
* @param {string} string
*/
self.replaceSymbols = function (string) {
string = string || "";
var alpha = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']
var str = '';
for (var i = 0; i < string.length; i++) {
if (string.charAt(i) == "#") {
str += faker.random.number(9);
} else if (string.charAt(i) == "?") {
str += faker.random.arrayElement(alpha);
} else if (string.charAt(i) == "*") {
str += faker.random.boolean() ? faker.random.arrayElement(alpha) : faker.random.number(9);
} else {
str += string.charAt(i);
}
}
return str;
};
/**
* replace symbols in a credit card schems including Luhn checksum
*
* @method faker.helpers.replaceCreditCardSymbols
* @param {string} string
* @param {string} symbol
*/
self.replaceCreditCardSymbols = function(string, symbol) {
// default values required for calling method without arguments
string = string || "6453-####-####-####-###L";
symbol = symbol || "#";
// Function calculating the Luhn checksum of a number string
var getCheckBit = function(number) {
number.reverse();
number = number.map(function(num, index){
if (index%2 === 0) {
num *= 2;
if(num>9) {
num -= 9;
}
}
return num;
});
var sum = number.reduce(function(prev,curr){return prev + curr;});
return sum % 10;
};
string = faker.helpers.regexpStyleStringParse(string); // replace [4-9] with a random number in range etc...
string = faker.helpers.replaceSymbolWithNumber(string, symbol); // replace ### with random numbers
var numberList = string.replace(/\D/g,"").split("").map(function(num){return parseInt(num);});
var checkNum = getCheckBit(numberList);
return string.replace("L",checkNum);
};
/** string repeat helper, alternative to String.prototype.repeat.... See PR #382
*
* @method faker.helpers.repeatString
* @param {string} string
* @param {number} num
*/
self.repeatString = function(string,num) {
if(typeof num ==="undefined") {
num = 0;
}
var text = "";
for(var i = 0; i < num; i++){
text += string.toString();
}
return text;
};
/**
* parse string paterns in a similar way to RegExp
*
* e.g. "#{3}test[1-5]" -> "###test4"
*
* @method faker.helpers.regexpStyleStringParse
* @param {string} string
*/
self.regexpStyleStringParse = function(string){
string = string || "";
// Deal with range repeat `{min,max}`
var RANGE_REP_REG = /(.)\{(\d+)\,(\d+)\}/;
var REP_REG = /(.)\{(\d+)\}/;
var RANGE_REG = /\[(\d+)\-(\d+)\]/;
var min, max, tmp, repetitions;
var token = string.match(RANGE_REP_REG);
while(token !== null){
min = parseInt(token[2]);
max = parseInt(token[3]);
// switch min and max
if(min>max) {
tmp = max;
max = min;
min = tmp;
}
repetitions = faker.random.number({min:min,max:max});
string = string.slice(0,token.index) + faker.helpers.repeatString(token[1], repetitions) + string.slice(token.index+token[0].length);
token = string.match(RANGE_REP_REG);
}
// Deal with repeat `{num}`
token = string.match(REP_REG);
while(token !== null){
repetitions = parseInt(token[2]);
string = string.slice(0,token.index)+ faker.helpers.repeatString(token[1], repetitions) + string.slice(token.index+token[0].length);
token = string.match(REP_REG);
}
// Deal with range `[min-max]` (only works with numbers for now)
//TODO: implement for letters e.g. [0-9a-zA-Z] etc.
token = string.match(RANGE_REG);
while(token !== null){
min = parseInt(token[1]); // This time we are not capturing the char befor `[]`
max = parseInt(token[2]);
// switch min and max
Iif(min>max) {
tmp = max;
max = min;
min = tmp;
}
string = string.slice(0,token.index) +
faker.random.number({min:min, max:max}).toString() +
string.slice(token.index+token[0].length);
token = string.match(RANGE_REG);
}
return string;
};
/**
* takes an array and returns it randomized
*
* @method faker.helpers.shuffle
* @param {array} o
*/
self.shuffle = function (o) {
if (typeof o === 'undefined' || o.length === 0) {
return [];
}
o = o || ["a", "b", "c"];
for (var j, x, i = o.length-1; i; j = faker.random.number(i), x = o[--i], o[i] = o[j], o[j] = x);
return o;
};
/**
* mustache
*
* @method faker.helpers.mustache
* @param {string} str
* @param {object} data
*/
self.mustache = function (str, data) {
if (typeof str === 'undefined') {
return '';
}
for(var p in data) {
var re = new RegExp('{{' + p + '}}', 'g')
str = str.replace(re, data[p]);
}
return str;
};
/**
* createCard
*
* @method faker.helpers.createCard
*/
self.createCard = function () {
return {
"name": faker.name.findName(),
"username": faker.internet.userName(),
"email": faker.internet.email(),
"address": {
"streetA": faker.address.streetName(),
"streetB": faker.address.streetAddress(),
"streetC": faker.address.streetAddress(true),
"streetD": faker.address.secondaryAddress(),
"city": faker.address.city(),
"state": faker.address.state(),
"country": faker.address.country(),
"zipcode": faker.address.zipCode(),
"geo": {
"lat": faker.address.latitude(),
"lng": faker.address.longitude()
}
},
"phone": faker.phone.phoneNumber(),
"website": faker.internet.domainName(),
"company": {
"name": faker.company.companyName(),
"catchPhrase": faker.company.catchPhrase(),
"bs": faker.company.bs()
},
"posts": [
{
"words": faker.lorem.words(),
"sentence": faker.lorem.sentence(),
"sentences": faker.lorem.sentences(),
"paragraph": faker.lorem.paragraph()
},
{
"words": faker.lorem.words(),
"sentence": faker.lorem.sentence(),
"sentences": faker.lorem.sentences(),
"paragraph": faker.lorem.paragraph()
},
{
"words": faker.lorem.words(),
"sentence": faker.lorem.sentence(),
"sentences": faker.lorem.sentences(),
"paragraph": faker.lorem.paragraph()
}
],
"accountHistory": [faker.helpers.createTransaction(), faker.helpers.createTransaction(), faker.helpers.createTransaction()]
};
};
/**
* contextualCard
*
* @method faker.helpers.contextualCard
*/
self.contextualCard = function () {
var name = faker.name.firstName(),
userName = faker.internet.userName(name);
return {
"name": name,
"username": userName,
"avatar": faker.internet.avatar(),
"email": faker.internet.email(userName),
"dob": faker.date.past(50, new Date("Sat Sep 20 1992 21:35:02 GMT+0200 (CEST)")),
"phone": faker.phone.phoneNumber(),
"address": {
"street": faker.address.streetName(true),
"suite": faker.address.secondaryAddress(),
"city": faker.address.city(),
"zipcode": faker.address.zipCode(),
"geo": {
"lat": faker.address.latitude(),
"lng": faker.address.longitude()
}
},
"website": faker.internet.domainName(),
"company": {
"name": faker.company.companyName(),
"catchPhrase": faker.company.catchPhrase(),
"bs": faker.company.bs()
}
};
};
/**
* userCard
*
* @method faker.helpers.userCard
*/
self.userCard = function () {
return {
"name": faker.name.findName(),
"username": faker.internet.userName(),
"email": faker.internet.email(),
"address": {
"street": faker.address.streetName(true),
"suite": faker.address.secondaryAddress(),
"city": faker.address.city(),
"zipcode": faker.address.zipCode(),
"geo": {
"lat": faker.address.latitude(),
"lng": faker.address.longitude()
}
},
"phone": faker.phone.phoneNumber(),
"website": faker.internet.domainName(),
"company": {
"name": faker.company.companyName(),
"catchPhrase": faker.company.catchPhrase(),
"bs": faker.company.bs()
}
};
};
/**
* createTransaction
*
* @method faker.helpers.createTransaction
*/
self.createTransaction = function(){
return {
"amount" : faker.finance.amount(),
"date" : new Date(2012, 1, 2), //TODO: add a ranged date method
"business": faker.company.companyName(),
"name": [faker.finance.accountName(), faker.finance.mask()].join(' '),
"type" : self.randomize(faker.definitions.finance.transaction_type),
"account" : faker.finance.account()
};
};
return self;
};
/*
String.prototype.capitalize = function () { //v1.0
return this.replace(/\w+/g, function (a) {
return a.charAt(0).toUpperCase() + a.substr(1).toLowerCase();
});
};
*/
module['exports'] = Helpers;
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