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vuex
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        <a href="." >Vuex とは何か?</a>
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                                <h1 id="vuex-&#x3068;&#x306F;&#x4F55;&#x304B;&#xFF1F;">Vuex &#x3068;&#x306F;&#x4F55;&#x304B;&#xFF1F;</h1>
<p>Vuex &#x306F; Vue.js &#x30A2;&#x30D7;&#x30EA;&#x30B1;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306E;&#x305F;&#x3081;&#x306E; <strong>&#x72B6;&#x614B;&#x7BA1;&#x7406;&#x30D1;&#x30BF;&#x30FC;&#x30F3; + &#x30E9;&#x30A4;&#x30D6;&#x30E9;&#x30EA;</strong>&#x3067;&#x3059;&#x3002;
&#x3053;&#x308C;&#x306F;&#x4E88;&#x6E2C;&#x53EF;&#x80FD;&#x306A;&#x65B9;&#x6CD5;&#x306B;&#x3088;&#x3063;&#x3066;&#x306E;&#x307F;&#x72B6;&#x614B;&#x306E;&#x5909;&#x7570;&#x3092;&#x884C;&#x3046;&#x3068;&#x3044;&#x3046;&#x30EB;&#x30FC;&#x30EB;&#x3092;&#x4FDD;&#x8A3C;&#x3057;&#x3001;&#x30A2;&#x30D7;&#x30EA;&#x30B1;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x5185;&#x306E;&#x5168;&#x3066;&#x306E;&#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x306E;&#x305F;&#x3081;&#x306E;&#x96C6;&#x4E2D;&#x578B;&#x306E;&#x30B9;&#x30C8;&#x30A2;&#x3068;&#x3057;&#x3066;&#x6A5F;&#x80FD;&#x3057;&#x307E;&#x3059;&#x3002;
&#x307E;&#x305F; Vue &#x516C;&#x5F0F;&#x306E;<a href="https://github.com/vuejs/vue-devtools" target="_blank">&#x958B;&#x767A;&#x30C4;&#x30FC;&#x30EB;&#x62E1;&#x5F35;</a>&#x3068;&#x9023;&#x643A;&#x3057;&#x3001;&#x8A2D;&#x5B9A;&#x306A;&#x3057;&#x3067;&#x30BF;&#x30A4;&#x30E0;&#x30C8;&#x30E9;&#x30D9;&#x30EB;&#x30C7;&#x30D0;&#x30C3;&#x30B0;&#x3084;&#x30B9;&#x30C6;&#x30FC;&#x30C8;&#x306E;&#x30B9;&#x30CA;&#x30C3;&#x30D7;&#x30B7;&#x30E7;&#x30C3;&#x30C8;&#x306E;&#x30A8;&#x30AF;&#x30B9;&#x30DD;&#x30FC;&#x30C8;&#x3084;&#x30A4;&#x30F3;&#x30DD;&#x30FC;&#x30C8;&#x306E;&#x3088;&#x3046;&#x306A;&#x9AD8;&#x5EA6;&#x306A;&#x6A5F;&#x80FD;&#x3092;&#x63D0;&#x4F9B;&#x3057;&#x307E;&#x3059;&#x3002;</p>
<h3 id="&#x72B6;&#x614B;&#x7BA1;&#x7406;&#x30D1;&#x30BF;&#x30FC;&#x30F3;&#x3068;&#x306F;&#x306A;&#x3093;&#x3067;&#x3059;&#x304B;&#xFF1F;">&quot;&#x72B6;&#x614B;&#x7BA1;&#x7406;&#x30D1;&#x30BF;&#x30FC;&#x30F3;&quot;&#x3068;&#x306F;&#x306A;&#x3093;&#x3067;&#x3059;&#x304B;&#xFF1F;</h3>
<p>&#x5358;&#x7D14;&#x306A; Vue &#x3067;&#x4F5C;&#x3089;&#x308C;&#x305F;&#x30AB;&#x30A6;&#x30F3;&#x30BF;&#x30FC;&#x30A2;&#x30D7;&#x30EA;&#x3092;&#x307F;&#x3066;&#x307F;&#x307E;&#x3057;&#x3087;&#x3046;:</p>
<pre class="language-"><code class="lang-js"><span class="token keyword">new</span> <span class="token class-name">Vue</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
  <span class="token comment" spellcheck="true">// state</span>
  data <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">return</span> <span class="token punctuation">{</span>
      count<span class="token punctuation">:</span> <span class="token number">0</span>
    <span class="token punctuation">}</span>
  <span class="token punctuation">}</span><span class="token punctuation">,</span>
  <span class="token comment" spellcheck="true">// view</span>
  template<span class="token punctuation">:</span> <span class="token template-string"><span class="token string">`
    &lt;div&gt;{{ count }}&lt;/div&gt;
  `</span></span><span class="token punctuation">,</span>
  <span class="token comment" spellcheck="true">// actions</span>
  methods<span class="token punctuation">:</span> <span class="token punctuation">{</span>
    increment <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      <span class="token keyword">this</span><span class="token punctuation">.</span>count<span class="token operator">++</span>
    <span class="token punctuation">}</span>
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
</code></pre>
<p>&#x3053;&#x308C;&#x306F;&#x3044;&#x304F;&#x3064;&#x304B;&#x306E;&#x8981;&#x7D20;&#x3092;&#x30A2;&#x30D7;&#x30EA;&#x81EA;&#x8EAB;&#x306B;&#x542B;&#x3093;&#x3067;&#x3044;&#x307E;&#x3059;:</p>
<ul>
<li><strong>&#x72B6;&#x614B;</strong>&#x3001;&#x3053;&#x308C;&#x306F;&#x79C1;&#x9054;&#x306E;&#x30A2;&#x30D7;&#x30EA;&#x3092;&#x52D5;&#x304B;&#x3059;&#x4FE1;&#x983C;&#x3067;&#x304D;&#x308B;&#x60C5;&#x5831;&#x6E90;(the source of truth)&#x3067;&#x3059;&#x3002;</li>
<li><strong>&#x30D3;&#x30E5;&#x30FC;</strong>&#x3001;&#x3053;&#x308C;&#x306F;<strong>&#x72B6;&#x614B;</strong>&#x306E;&#x305F;&#x3060;&#x306E;&#x5BA3;&#x8A00;&#x7684;&#x306A;&#x30DE;&#x30C3;&#x30D4;&#x30F3;&#x30B0;&#x3067;&#x3059;&#x3002;</li>
<li><strong>&#x30A2;&#x30AF;&#x30B7;&#x30E7;&#x30F3;</strong>&#x3001;&#x3053;&#x308C;&#x306F;<strong>&#x30D3;&#x30E5;&#x30FC;</strong>&#x304B;&#x3089;&#x306E;&#x30E6;&#x30FC;&#x30B6;&#x30FC;&#x5165;&#x529B;&#x306B;&#x53CD;&#x5FDC;&#x3057;&#x3066;&#x3001;&#x72B6;&#x614B;&#x306E;&#x5909;&#x66F4;&#x3092;&#x53EF;&#x80FD;&#x306B;&#x3059;&#x308B;&#x65B9;&#x6CD5;&#x3067;&#x3059;&#x3002;</li>
</ul>
<p>&#x3053;&#x308C;&#x3089;&#x306F;&quot;&#x5358;&#x65B9;&#x5411;&#x30C7;&#x30FC;&#x30BF;&#x30D5;&#x30ED;&#x30FC;&quot;&#x306E;&#x30B3;&#x30F3;&#x30BB;&#x30D7;&#x30C8;&#x306E;&#x6975;&#x3081;&#x3066;&#x30B7;&#x30F3;&#x30D7;&#x30EB;&#x306A;&#x8CAC;&#x52D9;&#x3067;&#x3059;:</p>
<p style="text-align: center; margin: 2em">
  <img style="width:100%;max-width:450px;" src="images/flow.png">
</p>

<p>&#x3057;&#x304B;&#x3057;&#x3001;&#x5358;&#x7D14;&#x3055;&#x306F;&#x3001;<strong>&#x5171;&#x901A;&#x306E;&#x72B6;&#x614B;&#x3092;&#x5171;&#x6709;&#x3059;&#x308B;&#x8907;&#x6570;&#x306E;&#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x3092;&#x6301;&#x3063;&#x305F;&#x3068;&#x304D;&#x306B;</strong>&#x3001;&#x3059;&#x3050;&#x306B;&#x7834;&#x7DBB;&#x3057;&#x307E;&#x3059;:</p>
<ul>
<li>&#x8907;&#x6570;&#x306E;&#x30D3;&#x30E5;&#x30FC;&#x304C;&#x540C;&#x3058;&#x72B6;&#x614B;&#x306B;&#x4F9D;&#x5B58;&#x3059;&#x308B;&#x3053;&#x3068;&#x304C;&#x3042;&#x308A;&#x307E;&#x3059;&#x3002;</li>
<li>&#x7570;&#x306A;&#x308B;&#x30D3;&#x30E5;&#x30FC;&#x304B;&#x3089;&#x306E;&#x30A2;&#x30AF;&#x30B7;&#x30E7;&#x30F3;&#x3067;&#x3001;&#x540C;&#x3058;&#x72B6;&#x614B;&#x3092;&#x5909;&#x66F4;&#x3059;&#x308B;&#x5FC5;&#x8981;&#x304C;&#x3042;&#x308A;&#x307E;&#x3059;&#x3002;</li>
</ul>
<p>&#x4E00;&#x3064;&#x76EE;&#x306F;&#x3001;&#x30D7;&#x30ED;&#x30D1;&#x30C6;&#x30A3; (props) &#x3068;&#x3057;&#x3066;&#x6DF1;&#x304F;&#x5165;&#x308C;&#x5B50;&#x306B;&#x306A;&#x3063;&#x305F;&#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x306B;&#x6E21;&#x3059;&#x306E;&#x306F;&#x9762;&#x5012;&#x3067;&#x3001;&#x5144;&#x5F1F;&#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x3067;&#x306F;&#x5358;&#x7D14;&#x306B;&#x6A5F;&#x80FD;&#x3057;&#x307E;&#x305B;&#x3093;&#x3002;&#x4E8C;&#x3064;&#x76EE;&#x306F;&#x3001;&#x89AA;&#x5B50;&#x306E;&#x30A4;&#x30F3;&#x30B9;&#x30BF;&#x30F3;&#x30B9;&#x3092;&#x76F4;&#x63A5;&#x53C2;&#x7167;&#x3057;&#x305F;&#x308A;&#x3001;&#x30A4;&#x30D9;&#x30F3;&#x30C8;&#x3092;&#x4ECB;&#x3057;&#x3066;&#x8907;&#x6570;&#x306E;&#x72B6;&#x614B;&#x306E;&#x30B3;&#x30D4;&#x30FC;&#x3092;&#x5909;&#x66F4;&#x3001;&#x540C;&#x671F;&#x3059;&#x308B;&#x3053;&#x3068;&#x3092;&#x8A66;&#x307F;&#x308B;&#x30BD;&#x30EA;&#x30E5;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306B;&#x983C;&#x3063;&#x3066;&#x3044;&#x308B;&#x3053;&#x3068;&#x304C;&#x3088;&#x304F;&#x3042;&#x308A;&#x307E;&#x3059;&#x3002;&#x3053;&#x308C;&#x3089;&#x306E;&#x30D1;&#x30BF;&#x30FC;&#x30F3;&#x306F;&#x3001;&#x3044;&#x305A;&#x308C;&#x3082;&#x8106;&#x304F;&#x3001;&#x3059;&#x3050;&#x306B;&#x30E1;&#x30F3;&#x30C6;&#x30CA;&#x30F3;&#x30B9;&#x304C;&#x56F0;&#x96E3;&#x306A;&#x30B3;&#x30FC;&#x30C9;&#x306B;&#x7E4B;&#x304C;&#x308A;&#x307E;&#x3059;&#x3002;</p>
<p>&#x3067;&#x306F;&#x3001;&#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x304B;&#x3089;&#x5171;&#x6709;&#x3057;&#x3066;&#x3044;&#x308B;&#x72B6;&#x614B;&#x3092;&#x62BD;&#x51FA;&#x3057;&#x3001;&#x305D;&#x308C;&#x3092;&#x30B0;&#x30ED;&#x30FC;&#x30D0;&#x30EB;&#x30B7;&#x30F3;&#x30B0;&#x30EB;&#x30C8;&#x30F3;&#x3067;&#x7BA1;&#x7406;&#x3059;&#x308B;&#x306E;&#x306F;&#x3069;&#x3046;&#x3067;&#x3057;&#x3087;&#x3046;&#x304B;&#xFF1F; &#x3053;&#x308C;&#x306B;&#x3088;&#x308A;&#x3001;&#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x30C4;&#x30EA;&#x30FC;&#x306F;&#x5927;&#x304D;&#x306A; &quot;&#x30D3;&#x30E5;&#x30FC;&quot; &#x3068;&#x306A;&#x308A;&#x3001;&#x3069;&#x306E;&#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x3082;&#x30C4;&#x30EA;&#x30FC;&#x5185;&#x306E;&#x3069;&#x3053;&#x306B;&#x3042;&#x3063;&#x3066;&#x3082;&#x72B6;&#x614B;&#x306B;&#x30A2;&#x30AF;&#x30BB;&#x30B9;&#x3057;&#x305F;&#x308A;&#x3001;&#x30A2;&#x30AF;&#x30B7;&#x30E7;&#x30F3;&#x3092;&#x30C8;&#x30EA;&#x30AC;&#x30FC;&#x3067;&#x304D;&#x307E;&#x3059;!</p>
<p>&#x3055;&#x3089;&#x306B;&#x3001;&#x72B6;&#x614B;&#x7BA1;&#x7406;&#x306B;&#x95A2;&#x308F;&#x308B;&#x6982;&#x5FF5;&#x3092;&#x5B9A;&#x7FA9;&#x3001;&#x5206;&#x96E2;&#x3057;&#x3001;&#x7279;&#x5B9A;&#x306E;&#x30EB;&#x30FC;&#x30EB;&#x3092;&#x6577;&#x304F;&#x3053;&#x3068;&#x3067;&#x3001;&#x30B3;&#x30FC;&#x30C9;&#x306E;&#x69CB;&#x9020;&#x3068;&#x4FDD;&#x5B88;&#x6027;&#x3092;&#x5411;&#x4E0A;&#x3055;&#x305B;&#x308B;&#x3053;&#x3068;&#x304C;&#x3067;&#x304D;&#x307E;&#x3059;&#x3002;</p>
<p>&#x3053;&#x308C;&#x304C; Vuex &#x306E;&#x80CC;&#x666F;&#x306B;&#x3042;&#x308B;&#x57FA;&#x672C;&#x7684;&#x306A;&#x30A2;&#x30A4;&#x30C7;&#x30A3;&#x30A2;&#x3067;&#x3042;&#x308A;&#x3001;<a href="https://facebook.github.io/flux/docs/overview.html" target="_blank">Flux</a>&#x3001; <a href="http://redux.js.org/" target="_blank">Redux</a> &#x305D;&#x3057;&#x3066; <a href="https://guide.elm-lang.org/architecture/" target="_blank">The Elm Architecture</a>&#x304B;&#x3089;&#x5F71;&#x97FF;&#x3092;&#x53D7;&#x3051;&#x3066;&#x3044;&#x307E;&#x3059;&#x3002;
&#x4ED6;&#x306E;&#x30D1;&#x30BF;&#x30FC;&#x30F3;&#x3068;&#x7570;&#x306A;&#x308B;&#x306E;&#x306F;&#x3001;Vuex &#x306F;&#x52B9;&#x7387;&#x7684;&#x306A;&#x66F4;&#x65B0;&#x306E;&#x305F;&#x3081;&#x306B;&#x3001;Vue.js &#x306E;&#x7C92;&#x5EA6;&#x306E;&#x7D30;&#x304B;&#x3044;&#x30EA;&#x30A2;&#x30AF;&#x30C6;&#x30A3;&#x30D3;&#x30C6;&#x30A3;&#x30B7;&#x30B9;&#x30C6;&#x30E0;&#x3092;&#x5229;&#x7528;&#x3059;&#x308B;&#x3088;&#x3046;&#x7279;&#x5225;&#x306B;&#x8ABF;&#x6574;&#x3057;&#x3066;&#x5B9F;&#x88C5;&#x3055;&#x308C;&#x305F;&#x30E9;&#x30A4;&#x30D6;&#x30E9;&#x30EA;&#x3060;&#x3068;&#x3044;&#x3046;&#x3053;&#x3068;&#x3067;&#x3059;&#x3002;</p>
<p><img src="images/vuex.png" alt="vuex"></p>
<h3 id="&#x3044;&#x3064;&#x3001;vuex&#x3092;&#x4F7F;&#x3046;&#x3079;&#x304D;&#x3067;&#x3057;&#x3087;&#x3046;&#x304B;&#xFF1F;">&#x3044;&#x3064;&#x3001;Vuex&#x3092;&#x4F7F;&#x3046;&#x3079;&#x304D;&#x3067;&#x3057;&#x3087;&#x3046;&#x304B;&#xFF1F;</h3>
<p>Vuex &#x306F;&#x3001;&#x5171;&#x6709;&#x72B6;&#x614B;&#x306E;&#x7BA1;&#x7406;&#x306B;&#x5F79;&#x7ACB;&#x3061;&#x307E;&#x3059;&#x304C;&#x3001;&#x3055;&#x3089;&#x306B;&#x6982;&#x5FF5;&#x3084;&#x30DC;&#x30A4;&#x30E9;&#x30FC;&#x30D7;&#x30EC;&#x30FC;&#x30C8;&#x306E;&#x30B3;&#x30B9;&#x30C8;&#x304C;&#x304B;&#x304B;&#x308A;&#x307E;&#x3059;&#x3002;&#x3053;&#x308C;&#x306F;&#x3001;&#x77ED;&#x671F;&#x7684;&#x751F;&#x7523;&#x6027;&#x3068;&#x9577;&#x671F;&#x7684;&#x751F;&#x7523;&#x6027;&#x306E;&#x30C8;&#x30EC;&#x30FC;&#x30C9;&#x30AA;&#x30D5;&#x3067;&#x3059;&#x3002;</p>
<p>&#x3082;&#x3057;&#x3001;&#x3042;&#x306A;&#x305F;&#x304C;&#x5927;&#x898F;&#x6A21;&#x306A; SPA &#x3092;&#x69CB;&#x7BC9;&#x3059;&#x308B;&#x3053;&#x3068;&#x306A;&#x304F;&#x3001;Vuex &#x3092;&#x5C0E;&#x5165;&#x3057;&#x305F;&#x5834;&#x5408;&#x3001;&#x5197;&#x9577;&#x3067;&#x6050;&#x308D;&#x3057;&#x3044;&#x3068;&#x611F;&#x3058;&#x308B;&#x304B;&#x3082;&#x3057;&#x308C;&#x307E;&#x305B;&#x3093;&#x3002;&#x305D;&#x3046;&#x611F;&#x3058;&#x308B;&#x3053;&#x3068;&#x306F;&#x5168;&#x304F;&#x666E;&#x901A;&#x3067;&#x3059;&#x3002;&#x3042;&#x306A;&#x305F;&#x306E;&#x30A2;&#x30D7;&#x30EA;&#x304C;&#x30B7;&#x30F3;&#x30D7;&#x30EB;&#x3067;&#x3042;&#x308C;&#x3070;&#x3001;Vuex &#x306A;&#x3057;&#x3067;&#x554F;&#x984C;&#x306A;&#x3044;&#x3067;&#x3057;&#x3087;&#x3046;&#x3002;&#x5358;&#x7D14;&#x306A; <a href="http://jp.vuejs.org/v2/guide/components.html#%E8%A6%AA%E5%AD%90%E9%96%93%E4%BB%A5%E5%A4%96%E3%81%AE%E9%80%9A%E4%BF%A1" target="_blank">&#x30B0;&#x30ED;&#x30FC;&#x30D0;&#x30EB;&#x30A4;&#x30D9;&#x30F3;&#x30C8;&#x30D0;&#x30B9;</a> &#x304C;&#x5FC5;&#x8981;&#x306A;&#x3060;&#x3051;&#x304B;&#x3082;&#x3057;&#x308C;&#x307E;&#x305B;&#x3093;&#x3002;&#x3057;&#x304B;&#x3057;&#x3001;&#x4E2D;&#x898F;&#x6A21;&#x304B;&#x3089;&#x5927;&#x898F;&#x6A21;&#x306E; SPA &#x3092;&#x69CB;&#x7BC9;&#x3059;&#x308B;&#x5834;&#x5408;&#x306F;&#x3001;Vue &#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x306E;&#x5916;&#x306E;&#x72B6;&#x614B;&#x3092;&#x3069;&#x3046;&#x3084;&#x3063;&#x3066;&#x3046;&#x307E;&#x304F;&#x6271;&#x3046;&#x304B;&#x8003;&#x3048;&#x308B;&#x7D76;&#x597D;&#x306E;&#x6A5F;&#x4F1A;&#x3067;&#x3059;&#x3002;Vuex &#x306F;&#x81EA;&#x7136;&#x306A;&#x6B21;&#x306E;&#x30B9;&#x30C6;&#x30C3;&#x30D7;&#x3068;&#x306A;&#x308B;&#x3067;&#x3057;&#x3087;&#x3046;&#x3002;&#x3053;&#x308C;&#x306F; Redux &#x306E;&#x4F5C;&#x8005;&#x3001;Dan Abramov &#x304B;&#x3089;&#x306E;&#x826F;&#x3044;&#x5F15;&#x7528;&#x3067;&#x3059;:</p>
<blockquote>
<p>Flux &#x30E9;&#x30A4;&#x30D6;&#x30E9;&#x30EA;&#x306F;&#x773C;&#x93E1;&#x306E;&#x3088;&#x3046;&#x306A;&#x3082;&#x306E;&#x3067;&#x3059;: &#x305D;&#x308C;&#x3089;&#x304C;&#x5FC5;&#x8981;&#x306B;&#x306A;&#x3063;&#x305F;&#x3068;&#x304D;&#x306B;&#x77E5;&#x308B;&#x306E;&#x3067;&#x3059;&#x3002;</p>
</blockquote>

                                
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