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faker.js - generate massive amounts of fake data in the browser and node.js

Faker.js

Build Status Coverage Status

npm version

OpenCollective OpenCollective

Demo

https://rawgit.com/Marak/faker.js/master/examples/browser/index.html

Hosted API Microservice

http://faker.hook.io

  • Supports all Faker API Methods
  • Full-Featured Microservice
  • Hosted by hook.io
curl http://faker.hook.io?property=name.findName&locale=de

Usage

Browser

<script src = "faker.js" type = "text/javascript"></script>
<script>
  var randomName = faker.name.findName(); // Caitlyn Kerluke
  var randomEmail = faker.internet.email(); // [email protected]
  var randomCard = faker.helpers.createCard(); // random contact card containing many properties
</script>

Node.js

var faker = require('faker');

var randomName = faker.name.findName(); // Rowan Nikolaus
var randomEmail = faker.internet.email(); // [email protected]
var randomCard = faker.helpers.createCard(); // random contact card containing many properties

API

Faker.fake()

faker.js contains a super useful generator method Faker.fake for combining faker API methods using a mustache string format.

Example:

console.log(faker.fake("{{name.lastName}}, {{name.firstName}} {{name.suffix}}"));
// outputs: "Marks, Dean Sr."

This will interpolate the format string with the value of methods name.lastName(), name.firstName(), and name.suffix()

JSDoc API Browser

http://marak.github.io/faker.js/

API Methods

  • address
    • zipCode
    • city
    • cityPrefix
    • citySuffix
    • streetName
    • streetAddress
    • streetSuffix
    • streetPrefix
    • secondaryAddress
    • county
    • country
    • countryCode
    • state
    • stateAbbr
    • latitude
    • longitude
  • commerce
    • color
    • department
    • productName
    • price
    • productAdjective
    • productMaterial
    • product
  • company
    • suffixes
    • companyName
    • companySuffix
    • catchPhrase
    • bs
    • catchPhraseAdjective
    • catchPhraseDescriptor
    • catchPhraseNoun
    • bsAdjective
    • bsBuzz
    • bsNoun
  • database
    • column
    • type
    • collation
    • engine
  • date
    • past
    • future
    • between
    • recent
    • soon
    • month
    • weekday
  • fake
  • finance
    • account
    • accountName
    • mask
    • amount
    • transactionType
    • currencyCode
    • currencyName
    • currencySymbol
    • bitcoinAddress
    • ethereumAddress
    • iban
    • bic
  • hacker
    • abbreviation
    • adjective
    • noun
    • verb
    • ingverb
    • phrase
  • helpers
    • randomize
    • slugify
    • replaceSymbolWithNumber
    • replaceSymbols
    • shuffle
    • mustache
    • createCard
    • contextualCard
    • userCard
    • createTransaction
  • image
    • image
    • avatar
    • imageUrl
    • abstract
    • animals
    • business
    • cats
    • city
    • food
    • nightlife
    • fashion
    • people
    • nature
    • sports
    • technics
    • transport
    • dataUri
  • internet
    • avatar
    • email
    • exampleEmail
    • userName
    • protocol
    • url
    • domainName
    • domainSuffix
    • domainWord
    • ip
    • ipv6
    • userAgent
    • color
    • mac
    • password
  • lorem
    • word
    • words
    • sentence
    • slug
    • sentences
    • paragraph
    • paragraphs
    • text
    • lines
  • name
    • firstName
    • lastName
    • findName
    • jobTitle
    • prefix
    • suffix
    • title
    • jobDescriptor
    • jobArea
    • jobType
  • phone
    • phoneNumber
    • phoneNumberFormat
    • phoneFormats
  • random
    • number
    • arrayElement
    • objectElement
    • uuid
    • boolean
    • word
    • words
    • image
    • locale
    • alphaNumeric
    • hexaDecimal
  • system
    • fileName
    • commonFileName
    • mimeType
    • commonFileType
    • commonFileExt
    • fileType
    • fileExt
    • directoryPath
    • filePath
    • semver

Localization

As of version v2.0.0 faker.js has support for multiple localities.

The default language locale is set to English.

Setting a new locale is simple:

// sets locale to de
faker.setLocale("de");
// or
faker.locale = "de";
  • az
  • cz
  • de
  • de_AT
  • de_CH
  • en
  • en_AU
  • en_BORK
  • en_CA
  • en_GB
  • en_IE
  • en_IND
  • en_US
  • en_au_ocker
  • es
  • es_MX
  • fa
  • fr
  • fr_CA
  • ge
  • id_ID
  • it
  • ja
  • ko
  • nb_NO
  • nep
  • nl
  • pl
  • pt_BR
  • ru
  • sk
  • sv
  • tr
  • uk
  • vi
  • zh_CN
  • zh_TW

Individual Localization Packages

As of vesion v3.0.0 faker.js supports incremental loading of locales.

By default, requiring faker will include all locale data.

In a production environment, you may only want to include the locale data for a specific set of locales.

// loads only de locale
var faker = require('faker/locale/de');

Setting a randomness seed

If you want consistent results, you can set your own seed:

faker.seed(123);

var firstRandom = faker.random.number();

// Setting the seed again resets the sequence.
faker.seed(123);

var secondRandom = faker.random.number();

console.log(firstRandom === secondRandom);

Tests

npm install .
make test

You can view a code coverage report generated in coverage/lcov-report/index.html.

Projects Built with faker.js

Fake JSON Schema

Use faker generators to populate JSON Schema samples. See: https://github.com/pateketrueke/json-schema-faker/

CLI

Run faker generators from Command Line. See: https://github.com/lestoni/faker-cli

Want to see your project added here? Let us know!

Meteor

Meteor Installation

meteor add practicalmeteor:faker

Meteor Usage, both client and server

var randomName = faker.name.findName(); // Rowan Nikolaus
var randomEmail = faker.internet.email(); // [email protected]
var randomCard = faker.helpers.createCard(); // random contact card containing many properties

Building faker.js

faker uses gulp to automate it's build process. Running the following build command will generate new browser builds, documentation, and code examples for the project.

npm run-script build

Building JSDocs

npm run-script doc

Version Release Schedule

faker.js is a popular project used by many organizations and individuals in production settings. Major and Minor version releases are generally on a monthly schedule. Bugs fixes are addressed by severity and fixed as soon as possible.

If you require the absolute latest version of faker.js the master branch @ http://github.com/marak/faker.js/ should always be up to date and working.

Maintainer

Marak Squires

faker.js - Copyright (c) 2017 Marak Squires http://github.com/marak/faker.js/

faker.js was inspired by and has used data definitions from:

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Backers

Support us with a monthly donation and help us continue our activities. [Become a backer]

Sponsors

Become a sponsor and get your logo on our README on Github with a link to your site. [Become a sponsor]