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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 Gitter chat

Demo

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

Faker Cloud

Don't have a local development setup ready?

Try our hosted version of Faker at https://fakercloud.com/api

https://github.com/faker/faker-cloud

Usage

Browser

    <script src = "faker.js" type = "text/javascript"></script>
    <script>
      var randomName = faker.name.findName(); // Caitlyn Kerluke
      var randomEmail = faker.internet.email(); // Rusty@arne.info
      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(); // Kassandra.Haley@erich.biz
    var randomCard = faker.helpers.createCard(); // random contact card containing many properties

API

JSDoc API Browser

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

API Methods

  • address
    • zipCode
    • zipCodeByState
    • city
    • cityPrefix
    • citySuffix
    • cityName
    • streetName
    • streetAddress
    • streetSuffix
    • streetPrefix
    • secondaryAddress
    • county
    • country
    • countryCode
    • state
    • stateAbbr
    • latitude
    • longitude
    • direction
    • cardinalDirection
    • ordinalDirection
    • nearbyGPSCoordinate
    • timeZone
  • animal
    • dog
    • cat
    • snake
    • bear
    • lion
    • cetacean
    • horse
    • bird
    • cow
    • fish
    • crocodilia
    • insect
    • rabbit
    • type
  • commerce
    • color
    • department
    • productName
    • price
    • productAdjective
    • productMaterial
    • product
    • productDescription
  • company
    • suffixes
    • companyName
    • companySuffix
    • catchPhrase
    • bs
    • catchPhraseAdjective
    • catchPhraseDescriptor
    • catchPhraseNoun
    • bsAdjective
    • bsBuzz
    • bsNoun
  • database
    • column
    • type
    • collation
    • engine
  • datatype
    • number
    • float
    • datetime
    • string
    • uuid
    • boolean
    • hexaDecimal
    • json
    • array
  • date
    • past
    • future
    • between
    • betweens
    • recent
    • soon
    • month
    • weekday
  • fake
  • finance
    • account
    • accountName
    • routingNumber
    • mask
    • amount
    • transactionType
    • currencyCode
    • currencyName
    • currencySymbol
    • bitcoinAddress
    • litecoinAddress
    • creditCardNumber
    • creditCardCVV
    • ethereumAddress
    • iban
    • bic
    • transactionDescription
  • git
    • branch
    • commitEntry
    • commitMessage
    • commitSha
    • shortSha
  • hacker
    • abbreviation
    • adjective
    • noun
    • verb
    • ingverb
    • phrase
  • helpers
    • randomize
    • slugify
    • replaceSymbolWithNumber
    • replaceSymbols
    • replaceCreditCardSymbols
    • repeatString
    • regexpStyleStringParse
    • shuffle
    • mustache
    • createCard
    • contextualCard
    • userCard
    • createTransaction
  • image
    • image
    • avatar
    • imageUrl
    • abstract
    • animals
    • business
    • cats
    • city
    • food
    • nightlife
    • fashion
    • people
    • nature
    • sports
    • technics
    • transport
    • dataUri
    • lorempixel
    • unsplash
    • lorempicsum
  • internet
    • avatar
    • email
    • exampleEmail
    • userName
    • protocol
    • httpMethod
    • url
    • domainName
    • domainSuffix
    • domainWord
    • ip
    • ipv6
    • port
    • userAgent
    • color
    • mac
    • password
  • lorem
    • word
    • words
    • sentence
    • slug
    • sentences
    • paragraph
    • paragraphs
    • text
    • lines
  • mersenne
    • rand
    • seed
    • seed_array
  • music
    • genre
  • name
    • firstName
    • lastName
    • middleName
    • findName
    • jobTitle
    • gender
    • prefix
    • suffix
    • title
    • jobDescriptor
    • jobArea
    • jobType
  • phone
    • phoneNumber
    • phoneNumberFormat
    • phoneFormats
  • system
    • fileName
    • commonFileName
    • mimeType
    • commonFileType
    • commonFileExt
    • fileType
    • fileExt
    • directoryPath
    • filePath
    • semver
  • time
    • recent
  • unique
  • vehicle
    • vehicle
    • manufacturer
    • model
    • type
    • fuel
    • vin
    • color
    • vrm
    • bicycle

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()

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.locale = "de";
  • az
  • ar
  • cz
  • de
  • de_AT
  • de_CH
  • en
  • en_AU
  • en_AU_ocker
  • en_BORK
  • en_CA
  • en_GB
  • en_IE
  • en_IND
  • en_US
  • en_ZA
  • es
  • es_MX
  • fa
  • fi
  • fr
  • fr_CA
  • fr_CH
  • ge
  • hy
  • hr
  • id_ID
  • it
  • ja
  • ko
  • nb_NO
  • ne
  • nl
  • nl_BE
  • pl
  • pt_BR
  • pt_PT
  • ro
  • ru
  • sk
  • sv
  • tr
  • uk
  • vi
  • zh_CN
  • zh_TW

Individual Localization Packages

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.datatype.number();

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

var secondRandom = faker.datatype.number();

console.log(firstRandom === secondRandom);

Tests

npm install .
npm run test

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

Building faker.js

faker uses gulp to automate its build process. Each build operation is a separate task which can be run independently.

Browser Bundle

npm run browser

Building JSDocs

JSDOC v3 HTML API documentation

npm run jsdoc

Building ReadMe

The ReadMe.md file for faker.js is automatically generated and should not be modified directly. All updates to ReadMe.md should be performed in ./build/src/docs.md and then the build script should be run.

npm run readme

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) 2020 Marak Squires www.marak.com 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]