summaryrefslogtreecommitdiff
path: root/docs/v3/map.js.html
blob: eca1a4a27dc1e614bfba72fc0251221dd01000a8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
<!DOCTYPE html>
<html lang="en">
<head>

    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>map.js - Documentation</title>


    <link rel="icon" href="favicon.ico?v=2">
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/bootstrap/3.3.6/css/bootstrap.min.css">

    <link rel="stylesheet" href="styles/prettify-tomorrow.css">

    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Montserrat:400,700">
    <link rel="stylesheet" href="styles/jsdoc-default.css">

    <!--[if lt IE 9]>
      <script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
    <![endif]-->
    <link type="text/css" rel="stylesheet" href="https://cdn.jsdelivr.net/ionicons/2.0.1/css/ionicons.min.css">
</head>
<body>

<div class="navbar navbar-default navbar-fixed-top">
  <div class="navbar-header">
    <a class="navbar-brand" href="../">
        <img src="img/async-logo.svg" alt="Async.js">
    </a>
  </div>
  <ul class="nav navbar-nav">
    <li id="version-dropdown" class="dropdown">
      <a href="#" class="dropdown-toggle vertically-centered" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">v3.0.1 <span class="caret"></span>
      </a>
      <ul class="dropdown-menu">
        <li><a href="../v3/">v3.0.x</a></li>
        <li><a href="../v2/">v2.6.2</a></li>
        <li>
          <a href="https://github.com/caolan/async/blob/v1.5.2/README.md">v1.5.x</a>
        </li>
      </ul>
    </li>
    <li><a href="./index.html">Home</a></li>
    <li><a href="./docs.html">Docs</a></li>
    <li><a href="https://github.com/caolan/async/blob/master/CHANGELOG.md">Changelog</a></li>
    <li><a href="https://github.com/caolan/async"><i class="ion-social-github" aria-hidden="true"></i></a></li>
  </ul>
  <ul class="nav navbar-nav navbar-right">
    <form class="navbar-form navbar-left" role="search">
      <div class="form-group">
        <input type="text" class="form-control typeahead" id="doc-search" placeholder="Search" autofocus>
      </div>
    </form>
  </ul>
</div>


<input type="checkbox" id="nav-trigger" class="nav-trigger">
<label for="nav-trigger" class="navicon-button x">
  <div class="navicon"></div>
</label>

<label for="nav-trigger" class="overlay"></label>

<div id="main">
    <div id="main-container" data-spy="scroll" data-target="#toc" data-offset="50">
        
        <h1 class="page-title">map.js</h1>
        

        



    
    <section>
        <article>
            <pre class="prettyprint source linenums"><code>import _map from &apos;./internal/map&apos;;
import eachOf from &apos;./eachOf&apos;
import awaitify from &apos;./internal/awaitify&apos;

/**
 * Produces a new collection of values by mapping each value in `coll` through
 * the `iteratee` function. The `iteratee` is called with an item from `coll`
 * and a callback for when it has finished processing. Each of these callback
 * takes 2 arguments: an `error`, and the transformed item from `coll`. If
 * `iteratee` passes an error to its callback, the main `callback` (for the
 * `map` function) is immediately called with the error.
 *
 * Note, that since this function applies the `iteratee` to each item in
 * parallel, there is no guarantee that the `iteratee` functions will complete
 * in order. However, the results array will be in the same order as the
 * original `coll`.
 *
 * If `map` is passed an Object, the results will be an Array.  The results
 * will roughly be in the order of the original Objects&apos; keys (but this can
 * vary across JavaScript engines).
 *
 * @name map
 * @static
 * @memberOf module:Collections
 * @method
 * @category Collection
 * @param {Array|Iterable|AsyncIterable|Object} coll - A collection to iterate over.
 * @param {AsyncFunction} iteratee - An async function to apply to each item in
 * `coll`.
 * The iteratee should complete with the transformed item.
 * Invoked with (item, callback).
 * @param {Function} [callback] - A callback which is called when all `iteratee`
 * functions have finished, or an error occurs. Results is an Array of the
 * transformed items from the `coll`. Invoked with (err, results).
 * @returns {Promise} a promise, if no callback is passed
 * @example
 *
 * async.map([&apos;file1&apos;,&apos;file2&apos;,&apos;file3&apos;], fs.stat, function(err, results) {
 *     // results is now an array of stats for each file
 * });
 */
function map (coll, iteratee, callback) {
    return _map(eachOf, coll, iteratee, callback)
}
export default awaitify(map, 3);
</code></pre>
        </article>
    </section>




    <footer>
    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.5.5</a> using the Minami theme.
</footer></div>
</div>

<nav id="toc">
    <h3>Methods:</h3><ul class="nav methods"><li class="toc-header"><a href="docs.html#collections">Collections</a></li><li data-type="method" class="toc-method"><a href="docs.html#concat">concat</a></li><li data-type="method" class="toc-method"><a href="docs.html#concatLimit">concatLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#concatSeries">concatSeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#detect">detect</a></li><li data-type="method" class="toc-method"><a href="docs.html#detectLimit">detectLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#detectSeries">detectSeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#each">each</a></li><li data-type="method" class="toc-method"><a href="docs.html#eachLimit">eachLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#eachOf">eachOf</a></li><li data-type="method" class="toc-method"><a href="docs.html#eachOfLimit">eachOfLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#eachOfSeries">eachOfSeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#eachSeries">eachSeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#every">every</a></li><li data-type="method" class="toc-method"><a href="docs.html#everyLimit">everyLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#everySeries">everySeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#filter">filter</a></li><li data-type="method" class="toc-method"><a href="docs.html#filterLimit">filterLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#filterSeries">filterSeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#groupBy">groupBy</a></li><li data-type="method" class="toc-method"><a href="docs.html#groupByLimit">groupByLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#groupBySeries">groupBySeries</a></li><li data-type="method" class="toc-method active"><a href="docs.html#map">map</a></li><li data-type="method" class="toc-method"><a href="docs.html#mapLimit">mapLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#mapSeries">mapSeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#mapValues">mapValues</a></li><li data-type="method" class="toc-method"><a href="docs.html#mapValuesLimit">mapValuesLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#mapValuesSeries">mapValuesSeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#reduce">reduce</a></li><li data-type="method" class="toc-method"><a href="docs.html#reduceRight">reduceRight</a></li><li data-type="method" class="toc-method"><a href="docs.html#reject">reject</a></li><li data-type="method" class="toc-method"><a href="docs.html#rejectLimit">rejectLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#rejectSeries">rejectSeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#some">some</a></li><li data-type="method" class="toc-method"><a href="docs.html#someLimit">someLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#someSeries">someSeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#sortBy">sortBy</a></li><li data-type="method" class="toc-method"><a href="docs.html#transform">transform</a></li><li class="toc-header"><a href="docs.html#controlflow">Control Flow</a></li><li data-type="method" class="toc-method"><a href="docs.html#applyEach">applyEach</a></li><li data-type="method" class="toc-method"><a href="docs.html#applyEachSeries">applyEachSeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#auto">auto</a></li><li data-type="method" class="toc-method"><a href="docs.html#autoInject">autoInject</a></li><li data-type="method" class="toc-method"><a href="docs.html#cargo">cargo</a></li><li data-type="method" class="toc-method"><a href="docs.html#cargoQueue">cargoQueue</a></li><li data-type="method" class="toc-method"><a href="docs.html#compose">compose</a></li><li data-type="method" class="toc-method"><a href="docs.html#doUntil">doUntil</a></li><li data-type="method" class="toc-method"><a href="docs.html#doWhilst">doWhilst</a></li><li data-type="method" class="toc-method"><a href="docs.html#forever">forever</a></li><li data-type="method" class="toc-method"><a href="docs.html#parallel">parallel</a></li><li data-type="method" class="toc-method"><a href="docs.html#parallelLimit">parallelLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#priorityQueue">priorityQueue</a></li><li data-type="method" class="toc-method"><a href="docs.html#queue">queue</a></li><li data-type="method" class="toc-method"><a href="docs.html#race">race</a></li><li data-type="method" class="toc-method"><a href="docs.html#retry">retry</a></li><li data-type="method" class="toc-method"><a href="docs.html#retryable">retryable</a></li><li data-type="method" class="toc-method"><a href="docs.html#seq">seq</a></li><li data-type="method" class="toc-method"><a href="docs.html#series">series</a></li><li data-type="method" class="toc-method"><a href="docs.html#times">times</a></li><li data-type="method" class="toc-method"><a href="docs.html#timesLimit">timesLimit</a></li><li data-type="method" class="toc-method"><a href="docs.html#timesSeries">timesSeries</a></li><li data-type="method" class="toc-method"><a href="docs.html#tryEach">tryEach</a></li><li data-type="method" class="toc-method"><a href="docs.html#until">until</a></li><li data-type="method" class="toc-method"><a href="docs.html#waterfall">waterfall</a></li><li data-type="method" class="toc-method"><a href="docs.html#whilst">whilst</a></li><li class="toc-header"><a href="docs.html#utils">Utils</a></li><li data-type="method" class="toc-method"><a href="docs.html#apply">apply</a></li><li data-type="method" class="toc-method"><a href="docs.html#asyncify">asyncify</a></li><li data-type="method" class="toc-method"><a href="docs.html#constant">constant</a></li><li data-type="method" class="toc-method"><a href="docs.html#dir">dir</a></li><li data-type="method" class="toc-method"><a href="docs.html#ensureAsync">ensureAsync</a></li><li data-type="method" class="toc-method"><a href="docs.html#log">log</a></li><li data-type="method" class="toc-method"><a href="docs.html#memoize">memoize</a></li><li data-type="method" class="toc-method"><a href="docs.html#nextTick">nextTick</a></li><li data-type="method" class="toc-method"><a href="docs.html#reflect">reflect</a></li><li data-type="method" class="toc-method"><a href="docs.html#reflectAll">reflectAll</a></li><li data-type="method" class="toc-method"><a href="docs.html#setImmediate">setImmediate</a></li><li data-type="method" class="toc-method"><a href="docs.html#timeout">timeout</a></li><li data-type="method" class="toc-method"><a href="docs.html#unmemoize">unmemoize</a></li></ul><h3>Methods:</h3>
</nav>

<br class="clear">




<script src="https://cdn.jsdelivr.net/prettify/0.1/prettify.js"></script>

<script src="https://cdn.jsdelivr.net/jquery/2.2.4/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script src="https://cdn.jsdelivr.net/typeahead.js/0.11.1/typeahead.bundle.min.js"></script>
<script>prettyPrint();</script>
<script src="scripts/async.js"></script>

<script src="scripts/linenumber.js" async></script>
<script src="scripts/jsdoc-custom.js" async></script>
</body>