subspace-site/vue.html

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<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Vue | SUBSPACE</title>
<meta name="description" content="Reactive ÐApp Development">
<link rel="apple-touch-icon" sizes="180x180" href="/assets/img/logo-small.png">
<link rel="icon" type="image/png" sizes="32x32" href="/assets/img/logo-small.png">
<link rel="icon" type="image/png" sizes="16x16" href="/assets/img/logo-small.png">
<link rel="shortcut icon" href="/assets/img/logo-small.png">
<meta name="theme-color" content="#ffffff">
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<link rel="preload" href="/assets/css/0.styles.514b72f5.css" as="style"><link rel="preload" href="/assets/js/app.eea690de.js" as="script"><link rel="preload" href="/assets/js/3.9498df45.js" as="script"><link rel="preload" href="/assets/js/19.91da0b43.js" as="script"><link rel="prefetch" href="/assets/js/10.0ba7844a.js"><link rel="prefetch" href="/assets/js/11.e6fa739b.js"><link rel="prefetch" href="/assets/js/12.44cb4d70.js"><link rel="prefetch" href="/assets/js/13.72c7694a.js"><link rel="prefetch" href="/assets/js/14.afbc70c1.js"><link rel="prefetch" href="/assets/js/15.1e59e25f.js"><link rel="prefetch" href="/assets/js/16.b64d2715.js"><link rel="prefetch" href="/assets/js/17.6d75f10a.js"><link rel="prefetch" href="/assets/js/18.801d9314.js"><link rel="prefetch" href="/assets/js/2.ced3bc39.js"><link rel="prefetch" href="/assets/js/20.4691289d.js"><link rel="prefetch" href="/assets/js/4.59e30da8.js"><link rel="prefetch" href="/assets/js/5.73836d55.js"><link rel="prefetch" href="/assets/js/6.5f41d563.js"><link rel="prefetch" href="/assets/js/7.e27f5416.js"><link rel="prefetch" href="/assets/js/8.34bb8c58.js"><link rel="prefetch" href="/assets/js/9.e55a9a9a.js">
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<link rel="stylesheet" href="/assets/css/0.styles.514b72f5.css">
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</head>
<body>
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<div id="app" data-server-rendered="true"><div class="theme-container"><script type="text/javascript">
(function(f, a, t, h, o, m){
a[h]=a[h]||function(){
(a[h].q=a[h].q||[]).push(arguments)
};
o=f.createElement('script'),
m=f.getElementsByTagName('script')[0];
o.async=1; o.src=t; o.id='fathom-script';
m.parentNode.insertBefore(o,m)
})(document, window, '//fathom.status.im/tracker.js', 'fathom');
fathom('set', 'siteId', 'DNONS');
fathom('trackPageview');
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</script> <header class="navbar"><div class="sidebar-button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" role="img" viewBox="0 0 448 512" class="icon"><path fill="currentColor" d="M436 124H12c-6.627 0-12-5.373-12-12V80c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12z"></path></svg></div> <a href="/" class="home-link router-link-active"><img src="/assets/img/logo-small.png" alt="SUBSPACE" class="logo"> <span class="site-name can-hide">SUBSPACE</span></a> <div class="links"><!----> <nav class="nav-links can-hide"><div class="nav-item"><a href="/getting-started/" class="nav-link">Getting Started</a></div><div class="nav-item"><a href="/integrations-overview.html" class="nav-link">Integrations</a></div><div class="nav-item"><a href="/api.html" class="nav-link">API</a></div><div class="nav-item"><a href="https://github.com/embarklabs/subspace" target="_blank" rel="noopener noreferrer" class="nav-link external">
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Github
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<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></div> <!----></nav></div></header> <div class="sidebar-mask"></div> <aside class="sidebar"><nav class="nav-links"><div class="nav-item"><a href="/getting-started/" class="nav-link">Getting Started</a></div><div class="nav-item"><a href="/integrations-overview.html" class="nav-link">Integrations</a></div><div class="nav-item"><a href="/api.html" class="nav-link">API</a></div><div class="nav-item"><a href="https://github.com/embarklabs/subspace" target="_blank" rel="noopener noreferrer" class="nav-link external">
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Github
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<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></div> <!----></nav> <ul class="sidebar-links"><li><a href="/" class="sidebar-link">Home</a></li><li><a href="/how-it-works.html" class="sidebar-link">How it works?</a><ul class="sidebar-sub-headers"></ul></li><li><a href="/getting-started.html" class="sidebar-link">Getting Started</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/getting-started.html#installation" class="sidebar-link">Installation</a></li><li class="sidebar-sub-header"><a href="/getting-started.html#importing-the-library" class="sidebar-link">Importing the library</a></li><li class="sidebar-sub-header"><a href="/getting-started.html#connecting-to-a-web3-provider" class="sidebar-link">Connecting to a web3 provider</a></li><li class="sidebar-sub-header"><a href="/getting-started.html#enhancing-your-contract-objects" class="sidebar-link">Enhancing your contract objects</a></li><li class="sidebar-sub-header"><a href="/getting-started.html#reacting-to-data" class="sidebar-link">Reacting to data</a></li><li class="sidebar-sub-header"><a href="/getting-started.html#tracking-state" class="sidebar-link">Tracking state</a></li><li class="sidebar-sub-header"><a href="/getting-started.html#tracking-events" class="sidebar-link">Tracking events</a></li><li class="sidebar-sub-header"><a href="/getting-started.html#tracking-balances" class="sidebar-link">Tracking balances</a></li><li class="sidebar-sub-header"><a href="/getting-started.html#getting-block-data-gas-prices-and-block-time" class="sidebar-link">Getting block data, gas prices and block time</a></li><li class="sidebar-sub-header"><a href="/getting-started.html#subscriptions" class="sidebar-link">Subscriptions</a></li><li class="sidebar-sub-header"><a href="/getting-started.html#cleanup" class="sidebar-link">Cleanup</a></li></ul></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading open"><span>Integrations</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/integrations-overview.html" class="sidebar-link">Overview</a></li><li><a href="/react.html" class="sidebar-link">React</a><ul class="sidebar-sub-headers"></ul></li><li><a href="/vue.html" class="active sidebar-link">Vue</a><ul class="sidebar-sub-headers"></ul></li><li><section class="sidebar-group is-sub-group depth-1"><p class="sidebar-heading"><span>Redux</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/redux.html" class="sidebar-link">redux</a><ul class="sidebar-sub-headers"></ul></li><li><a href="/redux-observable.html" class="sidebar-link">redux-observable</a></li></ul></section></li><li><a href="/reactive-graphql.html" class="sidebar-link">reactive-graphql</a><ul class="sidebar-sub-headers"></ul></li><li><a href="/apollo-client.html" class="sidebar-link">apollo-client</a><ul class="sidebar-sub-headers"></ul></li></ul></section></li><li><a href="/tutorial.html" class="sidebar-link">Tutorial</a></li><li><a href="/api.html" class="sidebar-link">API</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/api.html#general" class="sidebar-link">General</a></li><li class="sidebar-sub-header"><a href="/api.html#contract-methods" class="sidebar-link">Contract methods</a></li><li class="sidebar-sub-header"><a href="/api.html#blocks-gas-price-and-block-time" class="sidebar-link">Blocks, gas price and block time</a></li><li class="sidebar-sub-header"><a href="/api.html#low-level-api-for-data-tracking" class="sidebar-link">Low level API for data tracking</a></li></ul></li></ul> </aside> <main class="page"> <div class="theme-default-content content__default"><h1 id="vue"><a href="#vue" aria-hidden="true"
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<span class="token operator">&lt;</span>ul v<span class="token operator">-</span><span class="token keyword">if</span><span class="token operator">=</span><span class="token string">&quot;!!eventData$&quot;</span><span class="token operator">&gt;</span>
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<span class="token operator">&lt;</span>li<span class="token operator">&gt;</span><span class="token operator">&lt;</span>b<span class="token operator">&gt;</span>someValue<span class="token punctuation">:</span> <span class="token operator">&lt;</span><span class="token operator">/</span>b<span class="token operator">&gt;</span> <span class="token punctuation">{</span><span class="token punctuation">{</span>eventData$<span class="token punctuation">.</span>someValue<span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">&lt;</span><span class="token operator">/</span>li<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span>li<span class="token operator">&gt;</span><span class="token operator">&lt;</span>b<span class="token operator">&gt;</span>anotherValue<span class="token punctuation">:</span> <span class="token operator">&lt;</span><span class="token operator">/</span>b<span class="token operator">&gt;</span> <span class="token punctuation">{</span><span class="token punctuation">{</span>eventData$<span class="token punctuation">.</span>anotherValue<span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token operator">&lt;</span><span class="token operator">/</span>li<span class="token operator">&gt;</span>
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<span class="token operator">&lt;</span><span class="token operator">/</span>ul<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span><span class="token operator">/</span>template<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span>script<span class="token operator">&gt;</span>
<span class="token keyword">export</span> <span class="token keyword">default</span> <span class="token punctuation">{</span>
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name<span class="token punctuation">:</span> <span class="token string">'MyComponent'</span><span class="token punctuation">,</span>
props<span class="token punctuation">:</span> <span class="token punctuation">{</span>
eventData<span class="token punctuation">:</span> Object
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
<span class="token function">subscriptions</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token comment">// provide Rx observables</span>
<span class="token keyword">return</span> <span class="token punctuation">{</span>
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eventData$<span class="token punctuation">:</span> <span class="token keyword">this</span><span class="token punctuation">.</span>eventData
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<span class="token punctuation">}</span>
<span class="token punctuation">}</span>
<span class="token punctuation">}</span>
<span class="token operator">&lt;</span><span class="token operator">/</span>script<span class="token operator">&gt;</span>
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</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br></div></div><h4 id="app-vue"><a href="#app-vue" aria-hidden="true" class="header-anchor">#</a> App.vue</h4> <div class="language-js line-numbers-mode"><pre class="language-js"><code><span class="token operator">&lt;</span>template<span class="token operator">&gt;</span>
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<span class="token operator">&lt;</span>div id<span class="token operator">=</span><span class="token string">&quot;app&quot;</span><span class="token operator">&gt;</span>
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<span class="token operator">&lt;</span>button v<span class="token operator">-</span>on<span class="token punctuation">:</span>click<span class="token operator">=</span><span class="token string">&quot;createTrx&quot;</span><span class="token operator">&gt;</span>Create a Transaction<span class="token operator">&lt;</span><span class="token operator">/</span>button<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span>MyComponent v<span class="token operator">-</span>bind<span class="token punctuation">:</span>event<span class="token operator">-</span>data<span class="token operator">=</span><span class="token string">&quot;myEventObservable$&quot;</span> v<span class="token operator">-</span><span class="token keyword">if</span><span class="token operator">=</span><span class="token string">&quot;!!myEventObservable$&quot;</span> <span class="token operator">/</span><span class="token operator">&gt;</span>
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<span class="token operator">&lt;</span><span class="token operator">/</span>div<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span><span class="token operator">/</span>template<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span>script<span class="token operator">&gt;</span>
<span class="token keyword">import</span> MyComponent <span class="token keyword">from</span> <span class="token string">'./components/MyComponent.vue'</span><span class="token punctuation">;</span>
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<span class="token keyword">import</span> Subspace <span class="token keyword">from</span> <span class="token string">&quot;@embarklabs/subspace&quot;</span><span class="token punctuation">;</span>
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<span class="token keyword">export</span> <span class="token keyword">default</span> <span class="token punctuation">{</span>
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name<span class="token punctuation">:</span> <span class="token string">'app'</span><span class="token punctuation">,</span>
<span class="token function-variable function">data</span><span class="token punctuation">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
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<span class="token keyword">return</span> <span class="token punctuation">{</span>
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myEventObservable$<span class="token punctuation">:</span> <span class="token keyword">null</span><span class="token punctuation">,</span>
MyContractInstance<span class="token punctuation">:</span> <span class="token keyword">null</span>
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<span class="token punctuation">}</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span><span class="token punctuation">,</span>
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<span class="token function-variable function">created</span><span class="token punctuation">:</span> <span class="token keyword">async</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
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<span class="token keyword">this</span><span class="token punctuation">.</span>MyContractInstance <span class="token operator">=</span> <span class="token operator">...</span><span class="token punctuation">;</span> <span class="token comment">// TODO: obtain a web3.eth.contract instance</span>
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<span class="token keyword">const</span> subspace <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Subspace</span><span class="token punctuation">(</span><span class="token string">&quot;wss://localhost:8545&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// Use a valid provider (geth, parity, infura...)</span>
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<span class="token keyword">await</span> subspace<span class="token punctuation">.</span><span class="token function">init</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token keyword">this</span><span class="token punctuation">.</span>myEventObservable$ <span class="token operator">=</span> subspace<span class="token punctuation">.</span><span class="token function">trackEvent</span><span class="token punctuation">(</span><span class="token keyword">this</span><span class="token punctuation">.</span>MyContractInstance<span class="token punctuation">,</span> <span class="token string">&quot;MyEvent&quot;</span><span class="token punctuation">,</span> <span class="token punctuation">{</span>filter<span class="token punctuation">:</span> <span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">,</span> fromBlock<span class="token punctuation">:</span> <span class="token number">1</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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methods<span class="token punctuation">:</span> <span class="token punctuation">{</span>
<span class="token function-variable function">createTrx</span><span class="token punctuation">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span>
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<span class="token keyword">this</span><span class="token punctuation">.</span>MyContractInstance<span class="token punctuation">.</span>methods
<span class="token punctuation">.</span><span class="token function">myFunction</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
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<span class="token punctuation">.</span><span class="token function">send</span><span class="token punctuation">(</span><span class="token punctuation">{</span> <span class="token keyword">from</span><span class="token punctuation">:</span> web3<span class="token punctuation">.</span>eth<span class="token punctuation">.</span>defaultAccount <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span>
<span class="token punctuation">}</span><span class="token punctuation">,</span>
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components<span class="token punctuation">:</span> <span class="token punctuation">{</span>
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MyComponent
<span class="token punctuation">}</span>
<span class="token punctuation">}</span>
<span class="token operator">&lt;</span><span class="token operator">/</span>script<span class="token operator">&gt;</span>
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</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br></div></div><h4 id="further-read"><a href="#further-read" aria-hidden="true" class="header-anchor">#</a> Further read</h4> <ul><li><a href="https://www.npmjs.com/package/vue-rx" target="_blank" rel="noopener noreferrer">vue-rx<svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg></a></li></ul></div> <footer class="page-edit"><!----> <!----></footer> <div class="page-nav"><p class="inner"><span class="prev">
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