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<html><head><meta charset="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1"/><title>AsyncStorage · React Native</title><meta name="viewport" content="width=device-width"/><meta name="generator" content="Docusaurus"/><meta property="og:title" content="AsyncStorage · React Native"/><meta property="og:type" content="website"/><meta property="og:url" content="https://facebook.github.io/react-native/index.html"/><meta property="og:description" content="AsyncStorage is a simple, asynchronous, persistent, key-value storage system that is global to the app. It should be used instead of LocalStorage."/><link rel="shortcut icon" href="/react-native/img/favicon.png"/><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/solarized-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://facebook.github.io/blog/atom.xml" title="React 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class="navListItem"><a class="navItem" href="/react-native/docs/0.19/datepickerios.html">DatePickerIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/drawerlayoutandroid.html">DrawerLayoutAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/image.html">Image</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/modal.html">Modal</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/navigatorios.html">NavigatorIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/picker.html">Picker</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/progressbarandroid.html">ProgressBarAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/progressviewios.html">ProgressViewIOS</a></li><li class="navListItem"><a class="navItem" 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class="navItem" href="/react-native/docs/0.19/imagepickerios.html">ImagePickerIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/imagestore.html">ImageStore</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/image-style-props.html">Image Style Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/interactionmanager.html">InteractionManager</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/layout-props.html">Layout Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/layoutanimation.html">LayoutAnimation</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/netinfo.html">NetInfo</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/pixelratio.html">PixelRatio</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/pushnotificationios.html">PushNotificationIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/settings.html">Settings</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/shadow-props.html">Shadow Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/statusbarios.html">StatusBarIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/stylesheet.html">StyleSheet</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/text-style-props.html">Text Style Props</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/toastandroid.html">ToastAndroid</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/transforms.html">Transforms</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/vibrationios.html">VibrationIOS</a></li><li class="navListItem"><a class="navItem" href="/react-native/docs/0.19/view-style-props.html">View Style Props</a></li></ul></div></div></section></div><script>
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var nav = document.getElementById('docsNav');
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toggler.onclick = function() {
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nav.classList.toggle('docsSliderActive');
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};
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</script></nav></div><div class="container mainContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/facebook/react-native-website/blob/master/docs/asyncstorage.md" target="_blank">Edit</a><h1>AsyncStorage</h1></header><article><div><span><p>AsyncStorage is a simple, asynchronous, persistent, key-value storage system that is global to the app. It should be used instead of LocalStorage.</p>
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<p>It is recommended that you use an abstraction on top of AsyncStorage instead of AsyncStorage directly for anything more than light usage since it operates globally.</p>
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<p>This JS code is a simple facade over the native iOS implementation to provide a clear JS API, real Error objects, and simple non-multi functions. Each method returns a <code>Promise</code> object.</p>
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<h3><a class="anchor" aria-hidden="true" name="methods"></a><a href="#methods" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Methods</h3>
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<ul>
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<li><a href="/react-native/docs/0.19/asyncstorage.html#getitem"><code>getItem</code></a></li>
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<li><a href="/react-native/docs/0.19/asyncstorage.html#setitem"><code>setItem</code></a></li>
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<li><a href="/react-native/docs/0.19/asyncstorage.html#removeitem"><code>removeItem</code></a></li>
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<li><a href="/react-native/docs/0.19/asyncstorage.html#mergeitem"><code>mergeItem</code></a></li>
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<li><a href="/react-native/docs/0.19/asyncstorage.html#clear"><code>clear</code></a></li>
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<li><a href="/react-native/docs/0.19/asyncstorage.html#getallkeys"><code>getAllKeys</code></a></li>
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<li><a href="/react-native/docs/0.19/asyncstorage.html#flushgetrequests"><code>flushGetRequests</code></a></li>
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<li><a href="/react-native/docs/0.19/asyncstorage.html#multiget"><code>multiGet</code></a></li>
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<li><a href="/react-native/docs/0.19/asyncstorage.html#multiset"><code>multiSet</code></a></li>
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<li><a href="/react-native/docs/0.19/asyncstorage.html#multiremove"><code>multiRemove</code></a></li>
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<li><a href="/react-native/docs/0.19/asyncstorage.html#multimerge"><code>multiMerge</code></a></li>
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</ul>
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<h3><a class="anchor" aria-hidden="true" name="properties"></a><a href="#properties" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Properties</h3>
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<hr>
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<h1><a class="anchor" aria-hidden="true" name="reference"></a><a href="#reference" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Reference</h1>
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<h2><a class="anchor" aria-hidden="true" name="methods"></a><a href="#methods" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Methods</h2>
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<h3><a class="anchor" aria-hidden="true" name="getitem"></a><a href="#getitem" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>getItem()</code></h3>
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<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> getItem(key, callback?)
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</code></pre>
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<p>Fetches <code>key</code> and passes the result to <code>callback</code>, along with an <code>Error</code> if there is any. Returns a <code>Promise</code> object.</p>
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<hr>
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<h3><a class="anchor" aria-hidden="true" name="setitem"></a><a href="#setitem" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>setItem()</code></h3>
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<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> setItem(key, value, callback?)
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</code></pre>
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<p>Sets <code>value</code> for <code>key</code> and calls <code>callback</code> on completion, along with an <code>Error</code> if there is any. Returns a <code>Promise</code> object.</p>
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<hr>
|
||
<h3><a class="anchor" aria-hidden="true" name="removeitem"></a><a href="#removeitem" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>removeItem()</code></h3>
|
||
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> removeItem(key, callback?)
|
||
</code></pre>
|
||
<p>Returns a <code>Promise</code> object.</p>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" name="mergeitem"></a><a href="#mergeitem" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>mergeItem()</code></h3>
|
||
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> mergeItem(key, value, callback?)
|
||
</code></pre>
|
||
<p>Merges existing value with input value, assuming they are stringified json. Returns a <code>Promise</code> object. Not supported by all native implementations.</p>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" name="clear"></a><a href="#clear" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>clear()</code></h3>
|
||
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> clear(callback?)
|
||
</code></pre>
|
||
<p>Erases <em>all</em> AsyncStorage for all clients, libraries, etc. You probably don't want to call this - use removeItem or multiRemove to clear only your own keys instead. Returns a <code>Promise</code> object.</p>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" name="getallkeys"></a><a href="#getallkeys" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>getAllKeys()</code></h3>
|
||
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> getAllKeys(callback?)
|
||
</code></pre>
|
||
<p>Gets <em>all</em> keys known to the app, for all callers, libraries, etc. Returns a <code>Promise</code> object.</p>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" name="flushgetrequests"></a><a href="#flushgetrequests" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>flushGetRequests()</code></h3>
|
||
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> flushGetRequests()
|
||
</code></pre>
|
||
<p>Flushes any pending requests using a single multiget</p>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" name="multiget"></a><a href="#multiget" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>multiGet()</code></h3>
|
||
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> multiGet(keys, callback?)
|
||
</code></pre>
|
||
<p>multiGet invokes callback with an array of key-value pair arrays that matches the input format of multiSet. Returns a <code>Promise</code> object.</p>
|
||
<p>multiGet(['k1', 'k2'], cb) -> cb([['k1', 'val1'], ['k2', 'val2']])</p>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" name="multiset"></a><a href="#multiset" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>multiSet()</code></h3>
|
||
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> multiSet(keyValuePairs, callback?)
|
||
</code></pre>
|
||
<p>multiSet and multiMerge take arrays of key-value array pairs that match the output of multiGet, e.g. Returns a <code>Promise</code> object.</p>
|
||
<p>multiSet([['k1', 'val1'], ['k2', 'val2']], cb);</p>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" name="multiremove"></a><a href="#multiremove" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>multiRemove()</code></h3>
|
||
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> multiRemove(keys, callback?)
|
||
</code></pre>
|
||
<p>Delete all the keys in the <code>keys</code> array. Returns a <code>Promise</code> object.</p>
|
||
<hr>
|
||
<h3><a class="anchor" aria-hidden="true" name="multimerge"></a><a href="#multimerge" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a><code>multiMerge()</code></h3>
|
||
<pre><code class="hljs css javascript"><span class="hljs-keyword">static</span> multiMerge(keyValuePairs, callback?)
|
||
</code></pre>
|
||
<p>Merges existing values with input values, assuming they are stringified json. Returns a <code>Promise</code> object.</p>
|
||
<p>Not supported by all native implementations.</p>
|
||
<h2><a class="anchor" aria-hidden="true" name="properties"></a><a href="#properties" aria-hidden="true" class="hash-link" ><svg aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Properties</h2>
|
||
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