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

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

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

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 was inspired by and has used data definitions from:

http://search.cpan.org/~jasonk/Data-Faker-0.07/ - Copyright 2004-2005 by Jason Kohles

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

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faker.js's Introduction