lodash-fantasy
Version:
Fantasy Land compatible types built with lodash.
1,983 lines (838 loc) • 98.4 kB
HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Lodash Fantasy</title>
<meta name="description" content="Fantasy Land compatible types built with lodash." />
<meta property="og:title" content=""/>
<meta property="og:type" content="website"/>
<meta property="og:image" content=""/>
<meta property="og:url" content=""/>
<script src="scripts/prettify/prettify.js"></script>
<script src="scripts/prettify/lang-css.js"></script>
<script src="scripts/jquery.min.js"></script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
<link type="text/css" rel="stylesheet" href="styles/bootstrap.min.css">
<link type="text/css" rel="stylesheet" href="styles/jaguar.css">
<script>
var config = {"monospaceLinks":true,"cleverLinks":false,"applicationName":"lodash-fantasy","collapseSymbols":false,"default":{"outputSourceFiles":true},"linenums":true,"meta":{"description":"Fantasy Land compatible types built with lodash.","title":"Lodash Fantasy"},"openGraph":{"type":"website"}};
</script>
</head>
<body>
<div id="wrap" class="clearfix">
<div class="navigation">
<h3 class="applicationName"><a href="index.html">lodash-fantasy</a></h3>
<div class="search">
<input id="search" type="text" class="form-control input-sm" placeholder="Search Documentations">
</div>
<ul class="list">
<li class="item" data-name="Either">
<span class="title">
<a href="Either.html">Either</a>
</span>
<ul class="members itemMembers">
<span class="subtitle">Members</span>
<li data-name="Either.all"><a href="Either.html#.all">all</a></li>
<li data-name="Either.any"><a href="Either.html#.any">any</a></li>
<li data-name="Either.each"><a href="Either.html#.each">each</a></li>
<li data-name="Either.equals"><a href="Either.html#.equals">equals</a></li>
<li data-name="Either.filter"><a href="Either.html#.filter">filter</a></li>
<li data-name="Either.from"><a href="Either.html#.from">from</a></li>
<li data-name="Either.isEither"><a href="Either.html#.isEither">isEither</a></li>
<li data-name="Either.isLeft"><a href="Either.html#.isLeft">isLeft</a></li>
<li data-name="Either.isRight"><a href="Either.html#.isRight">isRight</a></li>
<li data-name="Either.Left"><a href="Either.html#.Left">Left</a></li>
<li data-name="Either.map"><a href="Either.html#.map">map</a></li>
<li data-name="Either.mapIn"><a href="Either.html#.mapIn">mapIn</a></li>
<li data-name="Either.of"><a href="Either.html#.of">of</a></li>
<li data-name="Either.reduce"><a href="Either.html#.reduce">reduce</a></li>
<li data-name="Either.Right"><a href="Either.html#.Right">Right</a></li>
<li data-name="Either.toMaybe"><a href="Either.html#.toMaybe">toMaybe</a></li>
<li data-name="Either.toPromise"><a href="Either.html#.toPromise">toPromise</a></li>
<li data-name="Either.toValidation"><a href="Either.html#.toValidation">toValidation</a></li>
<li data-name="Either.try"><a href="Either.html#.try">try</a></li>
</ul>
<ul class="typedefs itemMembers">
</ul>
<ul class="methods itemMembers">
<span class="subtitle">Methods</span>
<li data-name="Either#ap"><a href="Either.html#ap">ap</a></li>
<li data-name="Either#bimap"><a href="Either.html#bimap">bimap</a></li>
<li data-name="Either#chain"><a href="Either.html#chain">chain</a></li>
<li data-name="Either#equals"><a href="Either.html#equals">equals</a></li>
<li data-name="Either#extend"><a href="Either.html#extend">extend</a></li>
<li data-name="Either#get"><a href="Either.html#get">get</a></li>
<li data-name="Either#ifLeft"><a href="Either.html#ifLeft">ifLeft</a></li>
<li data-name="Either#ifRight"><a href="Either.html#ifRight">ifRight</a></li>
<li data-name="Either#isLeft"><a href="Either.html#isLeft">isLeft</a></li>
<li data-name="Either#isRight"><a href="Either.html#isRight">isRight</a></li>
<li data-name="Either#map"><a href="Either.html#map">map</a></li>
<li data-name="Either#of"><a href="Either.html#of">of</a></li>
<li data-name="Either#orElse"><a href="Either.html#orElse">orElse</a></li>
<li data-name="Either#orElseGet"><a href="Either.html#orElseGet">orElseGet</a></li>
<li data-name="Either#orElseThrow"><a href="Either.html#orElseThrow">orElseThrow</a></li>
<li data-name="Either#toMaybe"><a href="Either.html#toMaybe">toMaybe</a></li>
<li data-name="Either#toPromise"><a href="Either.html#toPromise">toPromise</a></li>
<li data-name="Either#toString"><a href="Either.html#toString">toString</a></li>
<li data-name="Either#toValidation"><a href="Either.html#toValidation">toValidation</a></li>
</ul>
<ul class="events itemMembers">
</ul>
</li>
<li class="item" data-name="Failure">
<span class="title">
<a href="Failure.html">Failure</a>
</span>
<ul class="members itemMembers">
</ul>
<ul class="typedefs itemMembers">
</ul>
<ul class="methods itemMembers">
<span class="subtitle">Methods</span>
<li data-name="Failure.from"><a href="Failure.html#.from">from</a></li>
<li data-name="Failure#ap"><a href="Failure.html#ap">ap</a></li>
<li data-name="Failure#bimap"><a href="Failure.html#bimap">bimap</a></li>
<li data-name="Failure#chain"><a href="Failure.html#chain">chain</a></li>
<li data-name="Failure#concat"><a href="Failure.html#concat">concat</a></li>
<li data-name="Failure#equals"><a href="Failure.html#equals">equals</a></li>
<li data-name="Failure#extend"><a href="Failure.html#extend">extend</a></li>
<li data-name="Failure#ifFailure"><a href="Failure.html#ifFailure">ifFailure</a></li>
<li data-name="Failure#ifSuccess"><a href="Failure.html#ifSuccess">ifSuccess</a></li>
<li data-name="Failure#isFailure"><a href="Failure.html#isFailure">isFailure</a></li>
<li data-name="Failure#isSuccess"><a href="Failure.html#isSuccess">isSuccess</a></li>
<li data-name="Failure#map"><a href="Failure.html#map">map</a></li>
<li data-name="Failure#of"><a href="Failure.html#of">of</a></li>
<li data-name="Failure#orElse"><a href="Failure.html#orElse">orElse</a></li>
<li data-name="Failure#orElseGet"><a href="Failure.html#orElseGet">orElseGet</a></li>
<li data-name="Failure#orElseThrow"><a href="Failure.html#orElseThrow">orElseThrow</a></li>
<li data-name="Failure#toEither"><a href="Failure.html#toEither">toEither</a></li>
<li data-name="Failure#toMaybe"><a href="Failure.html#toMaybe">toMaybe</a></li>
<li data-name="Failure#toPromise"><a href="Failure.html#toPromise">toPromise</a></li>
<li data-name="Failure#toString"><a href="Failure.html#toString">toString</a></li>
</ul>
<ul class="events itemMembers">
</ul>
</li>
<li class="item" data-name="Just">
<span class="title">
<a href="Just.html">Just</a>
</span>
<ul class="members itemMembers">
</ul>
<ul class="typedefs itemMembers">
</ul>
<ul class="methods itemMembers">
<span class="subtitle">Methods</span>
<li data-name="Just.from"><a href="Just.html#.from">from</a></li>
<li data-name="Just#ap"><a href="Just.html#ap">ap</a></li>
<li data-name="Just#chain"><a href="Just.html#chain">chain</a></li>
<li data-name="Just#equals"><a href="Just.html#equals">equals</a></li>
<li data-name="Just#extend"><a href="Just.html#extend">extend</a></li>
<li data-name="Just#get"><a href="Just.html#get">get</a></li>
<li data-name="Just#ifJust"><a href="Just.html#ifJust">ifJust</a></li>
<li data-name="Just#ifNothing"><a href="Just.html#ifNothing">ifNothing</a></li>
<li data-name="Just#isJust"><a href="Just.html#isJust">isJust</a></li>
<li data-name="Just#isNothing"><a href="Just.html#isNothing">isNothing</a></li>
<li data-name="Just#map"><a href="Just.html#map">map</a></li>
<li data-name="Just#of"><a href="Just.html#of">of</a></li>
<li data-name="Just#orElse"><a href="Just.html#orElse">orElse</a></li>
<li data-name="Just#orElseGet"><a href="Just.html#orElseGet">orElseGet</a></li>
<li data-name="Just#orElseThrow"><a href="Just.html#orElseThrow">orElseThrow</a></li>
<li data-name="Just#toEither"><a href="Just.html#toEither">toEither</a></li>
<li data-name="Just#toPromise"><a href="Just.html#toPromise">toPromise</a></li>
<li data-name="Just#toString"><a href="Just.html#toString">toString</a></li>
<li data-name="Just#toValidation"><a href="Just.html#toValidation">toValidation</a></li>
</ul>
<ul class="events itemMembers">
</ul>
</li>
<li class="item" data-name="Left">
<span class="title">
<a href="Left.html">Left</a>
</span>
<ul class="members itemMembers">
</ul>
<ul class="typedefs itemMembers">
</ul>
<ul class="methods itemMembers">
<span class="subtitle">Methods</span>
<li data-name="Left.from"><a href="Left.html#.from">from</a></li>
<li data-name="Left#ap"><a href="Left.html#ap">ap</a></li>
<li data-name="Left#bimap"><a href="Left.html#bimap">bimap</a></li>
<li data-name="Left#chain"><a href="Left.html#chain">chain</a></li>
<li data-name="Left#equals"><a href="Left.html#equals">equals</a></li>
<li data-name="Left#extend"><a href="Left.html#extend">extend</a></li>
<li data-name="Left#get"><a href="Left.html#get">get</a></li>
<li data-name="Left#ifLeft"><a href="Left.html#ifLeft">ifLeft</a></li>
<li data-name="Left#ifRight"><a href="Left.html#ifRight">ifRight</a></li>
<li data-name="Left#isLeft"><a href="Left.html#isLeft">isLeft</a></li>
<li data-name="Left#isRight"><a href="Left.html#isRight">isRight</a></li>
<li data-name="Left#map"><a href="Left.html#map">map</a></li>
<li data-name="Left#of"><a href="Left.html#of">of</a></li>
<li data-name="Left#orElse"><a href="Left.html#orElse">orElse</a></li>
<li data-name="Left#orElseGet"><a href="Left.html#orElseGet">orElseGet</a></li>
<li data-name="Left#orElseThrow"><a href="Left.html#orElseThrow">orElseThrow</a></li>
<li data-name="Left#toMaybe"><a href="Left.html#toMaybe">toMaybe</a></li>
<li data-name="Left#toPromise"><a href="Left.html#toPromise">toPromise</a></li>
<li data-name="Left#toString"><a href="Left.html#toString">toString</a></li>
<li data-name="Left#toValidation"><a href="Left.html#toValidation">toValidation</a></li>
</ul>
<ul class="events itemMembers">
</ul>
</li>
<li class="item" data-name="Maybe">
<span class="title">
<a href="Maybe.html">Maybe</a>
</span>
<ul class="members itemMembers">
<span class="subtitle">Members</span>
<li data-name="Maybe.all"><a href="Maybe.html#.all">all</a></li>
<li data-name="Maybe.any"><a href="Maybe.html#.any">any</a></li>
<li data-name="Maybe.each"><a href="Maybe.html#.each">each</a></li>
<li data-name="Maybe.equals"><a href="Maybe.html#.equals">equals</a></li>
<li data-name="Maybe.filter"><a href="Maybe.html#.filter">filter</a></li>
<li data-name="Maybe.from"><a href="Maybe.html#.from">from</a></li>
<li data-name="Maybe.isJust"><a href="Maybe.html#.isJust">isJust</a></li>
<li data-name="Maybe.isMaybe"><a href="Maybe.html#.isMaybe">isMaybe</a></li>
<li data-name="Maybe.isNothing"><a href="Maybe.html#.isNothing">isNothing</a></li>
<li data-name="Maybe.Just"><a href="Maybe.html#.Just">Just</a></li>
<li data-name="Maybe.map"><a href="Maybe.html#.map">map</a></li>
<li data-name="Maybe.mapIn"><a href="Maybe.html#.mapIn">mapIn</a></li>
<li data-name="Maybe.Nothing"><a href="Maybe.html#.Nothing">Nothing</a></li>
<li data-name="Maybe.of"><a href="Maybe.html#.of">of</a></li>
<li data-name="Maybe.ofNullable"><a href="Maybe.html#.ofNullable">ofNullable</a></li>
<li data-name="Maybe.reduce"><a href="Maybe.html#.reduce">reduce</a></li>
<li data-name="Maybe.toEither"><a href="Maybe.html#.toEither">toEither</a></li>
<li data-name="Maybe.toPromise"><a href="Maybe.html#.toPromise">toPromise</a></li>
<li data-name="Maybe.toValidation"><a href="Maybe.html#.toValidation">toValidation</a></li>
<li data-name="Maybe.try"><a href="Maybe.html#.try">try</a></li>
</ul>
<ul class="typedefs itemMembers">
</ul>
<ul class="methods itemMembers">
<span class="subtitle">Methods</span>
<li data-name="Maybe#ap"><a href="Maybe.html#ap">ap</a></li>
<li data-name="Maybe#chain"><a href="Maybe.html#chain">chain</a></li>
<li data-name="Maybe#equals"><a href="Maybe.html#equals">equals</a></li>
<li data-name="Maybe#extend"><a href="Maybe.html#extend">extend</a></li>
<li data-name="Maybe#get"><a href="Maybe.html#get">get</a></li>
<li data-name="Maybe#ifJust"><a href="Maybe.html#ifJust">ifJust</a></li>
<li data-name="Maybe#ifNothing"><a href="Maybe.html#ifNothing">ifNothing</a></li>
<li data-name="Maybe#isJust"><a href="Maybe.html#isJust">isJust</a></li>
<li data-name="Maybe#isNothing"><a href="Maybe.html#isNothing">isNothing</a></li>
<li data-name="Maybe#map"><a href="Maybe.html#map">map</a></li>
<li data-name="Maybe#of"><a href="Maybe.html#of">of</a></li>
<li data-name="Maybe#orElse"><a href="Maybe.html#orElse">orElse</a></li>
<li data-name="Maybe#orElseGet"><a href="Maybe.html#orElseGet">orElseGet</a></li>
<li data-name="Maybe#orElseThrow"><a href="Maybe.html#orElseThrow">orElseThrow</a></li>
<li data-name="Maybe#toEither"><a href="Maybe.html#toEither">toEither</a></li>
<li data-name="Maybe#toPromise"><a href="Maybe.html#toPromise">toPromise</a></li>
<li data-name="Maybe#toString"><a href="Maybe.html#toString">toString</a></li>
<li data-name="Maybe#toValidation"><a href="Maybe.html#toValidation">toValidation</a></li>
</ul>
<ul class="events itemMembers">
</ul>
</li>
<li class="item" data-name="Nothing">
<span class="title">
<a href="Nothing.html">Nothing</a>
</span>
<ul class="members itemMembers">
</ul>
<ul class="typedefs itemMembers">
</ul>
<ul class="methods itemMembers">
<span class="subtitle">Methods</span>
<li data-name="Nothing.from"><a href="Nothing.html#.from">from</a></li>
<li data-name="Nothing#ap"><a href="Nothing.html#ap">ap</a></li>
<li data-name="Nothing#chain"><a href="Nothing.html#chain">chain</a></li>
<li data-name="Nothing#equals"><a href="Nothing.html#equals">equals</a></li>
<li data-name="Nothing#extend"><a href="Nothing.html#extend">extend</a></li>
<li data-name="Nothing#get"><a href="Nothing.html#get">get</a></li>
<li data-name="Nothing#ifJust"><a href="Nothing.html#ifJust">ifJust</a></li>
<li data-name="Nothing#ifNothing"><a href="Nothing.html#ifNothing">ifNothing</a></li>
<li data-name="Nothing#isJust"><a href="Nothing.html#isJust">isJust</a></li>
<li data-name="Nothing#isNothing"><a href="Nothing.html#isNothing">isNothing</a></li>
<li data-name="Nothing#map"><a href="Nothing.html#map">map</a></li>
<li data-name="Nothing#of"><a href="Nothing.html#of">of</a></li>
<li data-name="Nothing#orElse"><a href="Nothing.html#orElse">orElse</a></li>
<li data-name="Nothing#orElseGet"><a href="Nothing.html#orElseGet">orElseGet</a></li>
<li data-name="Nothing#orElseThrow"><a href="Nothing.html#orElseThrow">orElseThrow</a></li>
<li data-name="Nothing#toEither"><a href="Nothing.html#toEither">toEither</a></li>
<li data-name="Nothing#toPromise"><a href="Nothing.html#toPromise">toPromise</a></li>
<li data-name="Nothing#toString"><a href="Nothing.html#toString">toString</a></li>
<li data-name="Nothing#toValidation"><a href="Nothing.html#toValidation">toValidation</a></li>
</ul>
<ul class="events itemMembers">
</ul>
</li>
<li class="item" data-name="Right">
<span class="title">
<a href="Right.html">Right</a>
</span>
<ul class="members itemMembers">
</ul>
<ul class="typedefs itemMembers">
</ul>
<ul class="methods itemMembers">
<span class="subtitle">Methods</span>
<li data-name="Right.from"><a href="Right.html#.from">from</a></li>
<li data-name="Right#ap"><a href="Right.html#ap">ap</a></li>
<li data-name="Right#bimap"><a href="Right.html#bimap">bimap</a></li>
<li data-name="Right#chain"><a href="Right.html#chain">chain</a></li>
<li data-name="Right#equals"><a href="Right.html#equals">equals</a></li>
<li data-name="Right#extend"><a href="Right.html#extend">extend</a></li>
<li data-name="Right#get"><a href="Right.html#get">get</a></li>
<li data-name="Right#ifLeft"><a href="Right.html#ifLeft">ifLeft</a></li>
<li data-name="Right#ifRight"><a href="Right.html#ifRight">ifRight</a></li>
<li data-name="Right#isLeft"><a href="Right.html#isLeft">isLeft</a></li>
<li data-name="Right#isRight"><a href="Right.html#isRight">isRight</a></li>
<li data-name="Right#map"><a href="Right.html#map">map</a></li>
<li data-name="Right#of"><a href="Right.html#of">of</a></li>
<li data-name="Right#orElse"><a href="Right.html#orElse">orElse</a></li>
<li data-name="Right#orElseGet"><a href="Right.html#orElseGet">orElseGet</a></li>
<li data-name="Right#orElseThrow"><a href="Right.html#orElseThrow">orElseThrow</a></li>
<li data-name="Right#toMaybe"><a href="Right.html#toMaybe">toMaybe</a></li>
<li data-name="Right#toPromise"><a href="Right.html#toPromise">toPromise</a></li>
<li data-name="Right#toString"><a href="Right.html#toString">toString</a></li>
<li data-name="Right#toValidation"><a href="Right.html#toValidation">toValidation</a></li>
</ul>
<ul class="events itemMembers">
</ul>
</li>
<li class="item" data-name="Success">
<span class="title">
<a href="Success.html">Success</a>
</span>
<ul class="members itemMembers">
</ul>
<ul class="typedefs itemMembers">
</ul>
<ul class="methods itemMembers">
<span class="subtitle">Methods</span>
<li data-name="Success.from"><a href="Success.html#.from">from</a></li>
<li data-name="Success#ap"><a href="Success.html#ap">ap</a></li>
<li data-name="Success#bimap"><a href="Success.html#bimap">bimap</a></li>
<li data-name="Success#chain"><a href="Success.html#chain">chain</a></li>
<li data-name="Success#concat"><a href="Success.html#concat">concat</a></li>
<li data-name="Success#equals"><a href="Success.html#equals">equals</a></li>
<li data-name="Success#extend"><a href="Success.html#extend">extend</a></li>
<li data-name="Success#ifFailure"><a href="Success.html#ifFailure">ifFailure</a></li>
<li data-name="Success#ifSuccess"><a href="Success.html#ifSuccess">ifSuccess</a></li>
<li data-name="Success#isFailure"><a href="Success.html#isFailure">isFailure</a></li>
<li data-name="Success#isSuccess"><a href="Success.html#isSuccess">isSuccess</a></li>
<li data-name="Success#map"><a href="Success.html#map">map</a></li>
<li data-name="Success#of"><a href="Success.html#of">of</a></li>
<li data-name="Success#orElse"><a href="Success.html#orElse">orElse</a></li>
<li data-name="Success#orElseGet"><a href="Success.html#orElseGet">orElseGet</a></li>
<li data-name="Success#orElseThrow"><a href="Success.html#orElseThrow">orElseThrow</a></li>
<li data-name="Success#toEither"><a href="Success.html#toEither">toEither</a></li>
<li data-name="Success#toMaybe"><a href="Success.html#toMaybe">toMaybe</a></li>
<li data-name="Success#toPromise"><a href="Success.html#toPromise">toPromise</a></li>
<li data-name="Success#toString"><a href="Success.html#toString">toString</a></li>
</ul>
<ul class="events itemMembers">
</ul>
</li>
<li class="item" data-name="Validation">
<span class="title">
<a href="Validation.html">Validation</a>
</span>
<ul class="members itemMembers">
<span class="subtitle">Members</span>
<li data-name="Validation.all"><a href="Validation.html#.all">all</a></li>
<li data-name="Validation.any"><a href="Validation.html#.any">any</a></li>
<li data-name="Validation.concat"><a href="Validation.html#.concat">concat</a></li>
<li data-name="Validation.each"><a href="Validation.html#.each">each</a></li>
<li data-name="Validation.empty"><a href="Validation.html#.empty">empty</a></li>
<li data-name="Validation.equals"><a href="Validation.html#.equals">equals</a></li>
<li data-name="Validation.Failure"><a href="Validation.html#.Failure">Failure</a></li>
<li data-name="Validation.filter"><a href="Validation.html#.filter">filter</a></li>
<li data-name="Validation.from"><a href="Validation.html#.from">from</a></li>
<li data-name="Validation.isFailure"><a href="Validation.html#.isFailure">isFailure</a></li>
<li data-name="Validation.isSuccess"><a href="Validation.html#.isSuccess">isSuccess</a></li>
<li data-name="Validation.isValidation"><a href="Validation.html#.isValidation">isValidation</a></li>
<li data-name="Validation.map"><a href="Validation.html#.map">map</a></li>
<li data-name="Validation.mapIn"><a href="Validation.html#.mapIn">mapIn</a></li>
<li data-name="Validation.of"><a href="Validation.html#.of">of</a></li>
<li data-name="Validation.reduce"><a href="Validation.html#.reduce">reduce</a></li>
<li data-name="Validation.Success"><a href="Validation.html#.Success">Success</a></li>
<li data-name="Validation.toEither"><a href="Validation.html#.toEither">toEither</a></li>
<li data-name="Validation.toMaybe"><a href="Validation.html#.toMaybe">toMaybe</a></li>
<li data-name="Validation.toPromise"><a href="Validation.html#.toPromise">toPromise</a></li>
<li data-name="Validation.try"><a href="Validation.html#.try">try</a></li>
</ul>
<ul class="typedefs itemMembers">
</ul>
<ul class="methods itemMembers">
<span class="subtitle">Methods</span>
<li data-name="Validation#ap"><a href="Validation.html#ap">ap</a></li>
<li data-name="Validation#bimap"><a href="Validation.html#bimap">bimap</a></li>
<li data-name="Validation#chain"><a href="Validation.html#chain">chain</a></li>
<li data-name="Validation#concat"><a href="Validation.html#concat">concat</a></li>
<li data-name="Validation#equals"><a href="Validation.html#equals">equals</a></li>
<li data-name="Validation#extend"><a href="Validation.html#extend">extend</a></li>
<li data-name="Validation#ifFailure"><a href="Validation.html#ifFailure">ifFailure</a></li>
<li data-name="Validation#ifSuccess"><a href="Validation.html#ifSuccess">ifSuccess</a></li>
<li data-name="Validation#isFailure"><a href="Validation.html#isFailure">isFailure</a></li>
<li data-name="Validation#isSuccess"><a href="Validation.html#isSuccess">isSuccess</a></li>
<li data-name="Validation#map"><a href="Validation.html#map">map</a></li>
<li data-name="Validation#of"><a href="Validation.html#of">of</a></li>
<li data-name="Validation#orElse"><a href="Validation.html#orElse">orElse</a></li>
<li data-name="Validation#orElseGet"><a href="Validation.html#orElseGet">orElseGet</a></li>
<li data-name="Validation#orElseThrow"><a href="Validation.html#orElseThrow">orElseThrow</a></li>
<li data-name="Validation#toEither"><a href="Validation.html#toEither">toEither</a></li>
<li data-name="Validation#toMaybe"><a href="Validation.html#toMaybe">toMaybe</a></li>
<li data-name="Validation#toPromise"><a href="Validation.html#toPromise">toPromise</a></li>
<li data-name="Validation#toString"><a href="Validation.html#toString">toString</a></li>
</ul>
<ul class="events itemMembers">
</ul>
</li>
</ul>
</div>
<div class="main">
<h1 class="page-title" data-filename="Maybe.html">Class: Maybe</h1>
<section>
<header>
<h2>
Maybe
</h2>
<div class="class-description">The <a href="Maybe.html"><code>Maybe</code></a> type is intended for values that may or may not be null or undefined. It is a disjunction similar
to <code>Either</code>. The key difference of the <a href="Maybe.html"><code>Maybe</code></a> type is the focus on a value or nothing. Much like
<code>Either</code>, <a href="Maybe.html"><code>Maybe</code></a> is right-biased.</div>
</header>
<article>
<div class="container-overview">
<dt>
<div class="nameContainer">
<h4 class="name" id="Maybe">
new Maybe<span class="signature">(value)</span><span class="glyphicon glyphicon-circle-arrow-right"></span><span class="type-signature returnType">{<a href="Maybe.html">Maybe</a>}</span>
</h4>
<div class="tag-source">
<a href="data_Maybe.js.html">data/Maybe.js</a>, <a href="data_Maybe.js.html#line52">line 52</a>
</div>
</div>
</dt>
<dd>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">*</span>
</td>
<td class="description last">
Value to wrap.</td>
</tr>
</tbody>
</table>
<dl class="details">
</dl>
<h5>Returns:</h5>
<table class="params">
<thead>
<tr>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="type">
<a href="Maybe.html">Maybe</a>
</td>
<td class="description last"><a href="Maybe.html"><code>Maybe</code></a> wrapped <code>value</code>.</td>
</tr>
</tbody>
</table>
<h5>Examples</h5>
<p class="code-caption">Via <code>new</code></p>
<pre class="prettyprint"><code>const v1 = new Just(value);
const v2 = new Nothing();</code></pre>
<p class="code-caption">Via function</p>
<pre class="prettyprint"><code>const v3 = Just.from(value);
const v4 = Nothing.from();</code></pre>
<p class="code-caption">Via Maybe function</p>
<pre class="prettyprint"><code>const getOr = require("lodash/fp/getOr");
const Maybe = require("lodash-fantasy/data/Maybe");
function getValue(path, context) {
return getOr(Maybe.Nothing.from(), path, context);
}
module.exports = getValue;</code></pre>
</dd>
</div>
<h3 class="subsection-title">Members</h3>
<dl>
<dt>
<div class="nameContainer">
<h4 class="name" id=".all"><span class="type-signature static">static</span>Maybe.all</h4>
</div>
</dt>
<dd>
<div class="description">
Returns a <a href="Maybe.html"><code>Maybe</code></a> that resolves all of the maybes in the collection into a single Maybe.
</div>
<dl class="details">
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>const m1 = getArbitraryProperty(context1);
// => Just(context1)
const m2 = getArbitraryProperty(context2);
// => Just(context2)
const m3 = getArbitraryProperty(context3);
// => Nothing()
const m4 = getArbitraryProperty(context4);
// => Nothing()
Maybe.all([m1, m2]);
// => Just([context1, context2])
Maybe.all([m1, m2, m3]);
// => Nothing()
Maybe.all([m1, m2, m3, m4]);
// => Nothing()</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".any"><span class="type-signature static">static</span>Maybe.any</h4>
</div>
</dt>
<dd>
<div class="description">
Returns the first <a href="Just.html"><code>Just</code></a> in the collection or finally a <a href="Nothing.html"><code>Nothing</code></a>.
</div>
<dl class="details">
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>const m1 = getArbitraryProperty(context1);
// => Just(context1)
const m2 = getArbitraryProperty(context2);
// => Just(context2)
const m3 = getArbitraryProperty(context3);
// => Nothing()
const m4 = getArbitraryProperty(context4);
// => Nothing()
Maybe.any([m1, m2]);
// => Just(context1)
Maybe.any([m2, m3]);
// => Just(context2)
Maybe.any([m3, m4]);
// => Nothing()</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".each"><span class="type-signature static">static</span>Maybe.each</h4>
</div>
</dt>
<dd>
<div class="description">
Iterates over a collection of maybes and invokes the <code>iteratee</code> for each <a href="Maybe.html"><code>Maybe</code></a>. The
<code>iteratee</code> is invoked with one argument: <code>(value)</code>. Iteratee functions may exit iteration
early by explicitly returning a <a href="Nothing.html"><code>Nothing</code></a>.
</div>
<dl class="details">
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>const optionalValues = [
getValue(path1, source), // => Just(value1)
getValue(path2, source), // => Just(value2)
getValue(path3, source), // => Nothing()
getValue(path4, source) // => Nothing()
];
Maybe.each(optionalValue => optionalValue.ifJust(console.log), optionalValues);
// => Just(value1)
// => Just(value2)</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".equals"><span class="type-signature static">static</span>Maybe.equals</h4>
</div>
</dt>
<dd>
<div class="description">
Determines whether or not the <code>other</code> is equal in value to the current (<code>this</code>). This is
<strong>not</strong> a reference check.
</div>
<dl class="details">
</dl>
<h5>Examples</h5>
<p class="code-caption">Reflexivity</p>
<pre class="prettyprint"><code>Maybe.equals(v1, v1) === true;
// => true</code></pre>
<p class="code-caption">Symmetry</p>
<pre class="prettyprint"><code>Maybe(v1, v2) === Maybe.equals(v2, v1);
// => true</code></pre>
<p class="code-caption">Transitivity</p>
<pre class="prettyprint"><code>(Maybe.equals(v1, v2) === Maybe.equals(v2, v3)) && Maybe.equals(v1, v3)
// => true</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".filter"><span class="type-signature static">static</span>Maybe.filter</h4>
</div>
</dt>
<dd>
<div class="description">
Iterates over a collection of values, returning an array of all values the <code>predicate</code> for which returns
truthy. The <code>predicate</code> is invoked with one argument: <code>(value)</code>.
</div>
<dl class="details">
</dl>
<h5>Example</h5>
<p class="code-caption">Filter and log failures</p>
<pre class="prettyprint"><code>const optionalValues = [
getValue(path1, config), // => Just(value1)
getValue(path2, config), // => Just(value2)
getValue(path3, config), // => Nothing()
getValue(path4, config) // => Nothing()
];
Maybe.filter(Maybe.isJust, optionalValues);
// => [Just(value1), Just(value2)]</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".from"><span class="type-signature static">static</span>Maybe.from</h4>
</div>
</dt>
<dd>
<div class="description">
Creates a new <a href="Maybe.html"><code>Maybe</code></a> from a <code>value</code>. If the <code>value</code> is already a <a href="Maybe.html"><code>Maybe</code></a>
instance, the <code>value</code> is returned unchanged. Otherwise, a new <a href="Just.html"><code>Just</code></a> is made with the
<code>value</code>.
</div>
<dl class="details">
</dl>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".isJust"><span class="type-signature static">static</span>Maybe.isJust</h4>
</div>
</dt>
<dd>
<div class="description">
Determines whether or not the value is a <a href="Just.html"><code>Just</code></a>.
</div>
<dl class="details">
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>isJust();
// => false
isJust(null);
// => false
isJust(Just.from());
// => true
isJust(Nothing.from());
// => false</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".isMaybe"><span class="type-signature static">static</span>Maybe.isMaybe</h4>
</div>
</dt>
<dd>
<div class="description">
Determines whether or not the value is a <a href="Maybe.html"><code>Maybe</code></a>.
</div>
<dl class="details">
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>isMaybe();
// => false
isMaybe(null);
// => false
isMaybe(Just.from());
// => true
isMaybe(Nothing.from());
// => true</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".isNothing"><span class="type-signature static">static</span>Maybe.isNothing</h4>
</div>
</dt>
<dd>
<div class="description">
Determines whether or not the value is a <a href="Nothing.html"><code>Nothing</code></a>.
</div>
<dl class="details">
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>isNothing();
// => false
isNothing(null);
// => false
isNothing(Nothing.from());
// => true
isNothing(Just.from());
// => false</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".Just"><span class="type-signature static">static</span>Maybe.Just</h4>
</div>
</dt>
<dd>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>Just</code></td>
<td class="type">
<span class="param-type"><a href="Just.html">Just</a></span>
</td>
<td class="description last">Maybe just.</td>
</tr>
</tbody>
</table></dl>
</dl>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".map"><span class="type-signature static">static</span>Maybe.map</h4>
</div>
</dt>
<dd>
<div class="description">
Creates an array of values by running each <a href="Maybe.html"><code>Maybe</code></a> in collection through the <code>iteratee</code>. The
iteratee is invoked with one argument: <code>(value)</code>.
</div>
<dl class="details">
</dl>
<h5>Example</h5>
<p class="code-caption">Mapping all values to promises</p>
<pre class="prettyprint"><code>const optionalValues = [
getValue(path1, config), // => Just(value1)
getValue(path2, config), // => Just(value2)
getValue(path3, config), // => Nothing()
getValue(path4, config) // => Nothing()
];
Maybe.map(Maybe.toPromise, optionalValues);
// => [Promise.resolve(price1), Promise.resolve(price2), Promise.reject(null), Promise.reject(null)]</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".mapIn"><span class="type-signature static">static</span>Maybe.mapIn</h4>
</div>
</dt>
<dd>
<div class="description">
Creates an array of values by invoking <a href="Maybe.html#map"><code>Maybe#map</code></a> with the <code>iteratee</code> for each <a href="Maybe.html"><code>Maybe</code></a> in the
collection. The iteratee is invoked with one argument: <code>(value)</code>.
</div>
<dl class="details">
</dl>
<h5>Example</h5>
<p class="code-caption">Mapping each Maybe's value</p>
<pre class="prettyprint"><code>const optionalValues = [
getValue(path1, config), // => Just(1.5)
getValue(path2, config), // => Just(2.25)
getValue(path3, config), // => Nothing()
getValue(path4, config) // => Nothing()
];
Maybe.mapIn(Math.floor, optionalValues);
// => [Just(1), Just(2), Nothing(), Nothing()]</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".Nothing"><span class="type-signature static">static</span>Maybe.Nothing</h4>
</div>
</dt>
<dd>
<dl class="details">
<h5 class="subsection-title">Properties:</h5>
<dl>
<table class="props">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>Nothing</code></td>
<td class="type">
<span class="param-type"><a href="Nothing.html">Nothing</a></span>
</td>
<td class="description last">Maybe nothing.</td>
</tr>
</tbody>
</table></dl>
</dl>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".of"><span class="type-signature static">static</span>Maybe.of</h4>
</div>
</dt>
<dd>
<div class="description">
Wraps the <code>value</code> in a <a href="Just.html"><code>Just</code></a>. No parts of <code>value</code> are checked.
</div>
<dl class="details">
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>Maybe.of();
// => Just()
Maybe.of(true);
// => Just(true)
Maybe.of(Just.from(value));
// => Just(Just(value))
Maybe.of(Nothing.from());
// => Just(Nothing())</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".ofNullable"><span class="type-signature static">static</span>Maybe.ofNullable</h4>
</div>
</dt>
<dd>
<div class="description">
Wraps the <code>value</code> in a <a href="Just.html"><code>Just</code></a> if the value is not <code>null</code>, <code>undefined</code>, or
<a href="Nothing.html"><code>Nothing</code></a>.
</div>
<dl class="details">
</dl>
<h5>Example</h5>
<pre class="prettyprint"><code>Maybe.ofNullable();
// => Nothing()
Maybe.ofNullable(null);
// => Nothing()
Maybe.ofNullable(true);
// => Just(true)
Maybe.ofNullable(Just.from(value));
// => Just(Just(value))
Maybe.ofNullable(Nothing.from());
// => Nothing()</code></pre>
</dd>
<dt>
<div class="nameContainer">
<h4 class="name" id=".reduce"><span class="type-signature static">static</span>Maybe.reduce</h4>
</div>
</dt>
<dd>
<div class="description">
Reduces collection to a value which is the accumulated result of running each value in the <code>values</code>
collection through the <code>iteratee</code>, where each successive invocation is supplied the return value of the
previous. The iteratee is invoked with two arguments: <code>(accumulator, value)</code>.
</div>
<dl class="details">