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                                <h1 id="&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;">&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;</h1>
<p>&#x5B9F;&#x969B;&#x306B; Vuex &#x306E;&#x30B9;&#x30C8;&#x30A2;&#x306E;&#x72B6;&#x614B;&#x3092;&#x5909;&#x66F4;&#x3067;&#x304D;&#x308B;&#x552F;&#x4E00;&#x306E;&#x65B9;&#x6CD5;&#x306F;&#x3001;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x3092;&#x30B3;&#x30DF;&#x30C3;&#x30C8;&#x3059;&#x308B;&#x3053;&#x3068;&#x3067;&#x3059;&#x3002;Vuex &#x306E;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306F;&#x30A4;&#x30D9;&#x30F3;&#x30C8;&#x306B;&#x3068;&#x3066;&#x3082;&#x8FD1;&#x3044;&#x6982;&#x5FF5;&#x3067;&#x3059;: &#x5404;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306F;<strong>&#x30BF;&#x30A4;&#x30D7;</strong>&#x3068;<strong>&#x30CF;&#x30F3;&#x30C9;&#x30E9;</strong>&#x3092;&#x6301;&#x3061;&#x307E;&#x3059;&#x3002;&#x30CF;&#x30F3;&#x30C9;&#x30E9;&#x95A2;&#x6570;&#x306F; Vuex &#x306E;&#x72B6;&#x614B;&#xFF08;state&#xFF09;&#x3092;&#x7B2C;1&#x5F15;&#x6570;&#x3068;&#x3057;&#x3066;&#x53D6;&#x5F97;&#x3057;&#x3001;&#x5B9F;&#x969B;&#x306B;&#x72B6;&#x614B;&#x306E;&#x5909;&#x66F4;&#x3092;&#x884C;&#x3044;&#x307E;&#x3059;:</p>
<pre class="language-"><code class="lang-js"><span class="token keyword">const</span> store <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Vuex<span class="token punctuation">.</span>Store</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
  state<span class="token punctuation">:</span> <span class="token punctuation">{</span>
    count<span class="token punctuation">:</span> <span class="token number">1</span>
  <span class="token punctuation">}</span><span class="token punctuation">,</span>
  mutations<span class="token punctuation">:</span> <span class="token punctuation">{</span>
    increment <span class="token punctuation">(</span>state<span class="token punctuation">)</span> <span class="token punctuation">{</span>
      <span class="token comment" spellcheck="true">// &#x72B6;&#x614B;&#x3092;&#x5909;&#x66F4;&#x3059;&#x308B;</span>
      state<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>&#x76F4;&#x63A5;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x30CF;&#x30F3;&#x30C9;&#x30E9;&#x3092;&#x547C;&#x3073;&#x51FA;&#x3059;&#x3053;&#x3068;&#x306F;&#x3067;&#x304D;&#x307E;&#x305B;&#x3093;&#x3002;&#x3053;&#x306E; mutations &#x30AA;&#x30D7;&#x30B7;&#x30E7;&#x30F3;&#x306F;&#x3001;&#x3069;&#x3061;&#x3089;&#x304B;&#x3044;&#x3046;&#x3068; &quot;&#x30BF;&#x30A4;&#x30D7;&#x304C; <code>increment</code> &#x306E;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x304C;&#x30C8;&#x30EA;&#x30AC;&#x30FC;&#x3055;&#x308C;&#x305F;&#x3068;&#x304D;&#x306B;&#x3001;&#x3053;&#x306E;&#x30CF;&#x30F3;&#x30C9;&#x30E9;&#x304C;&#x547C;&#x3070;&#x308C;&#x308B;&quot; &#x3068;&#x3044;&#x3063;&#x305F;&#x30A4;&#x30D9;&#x30F3;&#x30C8;&#x767B;&#x9332;&#x306E;&#x3088;&#x3046;&#x306A;&#x3082;&#x306E;&#x3067;&#x3059;&#x3002;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x30CF;&#x30F3;&#x30C9;&#x30E9;&#x3092;&#x8D77;&#x52D5;&#x3059;&#x308B;&#x305F;&#x3081;&#x306B;&#x306F;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306E;&#x30BF;&#x30A4;&#x30D7;&#x3092;&#x6307;&#x5B9A;&#x3057;&#x3066; <code>store.commit</code> &#x3092;&#x547C;&#x3073;&#x51FA;&#x3059;&#x5FC5;&#x8981;&#x304C;&#x3042;&#x308A;&#x307E;&#x3059;:</p>
<pre class="language-"><code class="lang-js">store<span class="token punctuation">.</span><span class="token function">commit</span><span class="token punctuation">(</span><span class="token string">&apos;increment&apos;</span><span class="token punctuation">)</span>
</code></pre>
<h3 id="&#x8FFD;&#x52A0;&#x306E;&#x5F15;&#x6570;&#x3092;&#x6E21;&#x3057;&#x3066;&#x30B3;&#x30DF;&#x30C3;&#x30C8;&#x3059;&#x308B;">&#x8FFD;&#x52A0;&#x306E;&#x5F15;&#x6570;&#x3092;&#x6E21;&#x3057;&#x3066;&#x30B3;&#x30DF;&#x30C3;&#x30C8;&#x3059;&#x308B;</h3>
<p><code>store.commit</code> &#x306B;&#x8FFD;&#x52A0;&#x306E;&#x5F15;&#x6570;&#x3092;&#x6E21;&#x3059;&#x3053;&#x3068;&#x3082;&#x3067;&#x304D;&#x307E;&#x3059;&#x3002;&#x3053;&#x306E;&#x8FFD;&#x52A0;&#x306E;&#x5F15;&#x6570;&#x306F;&#x3001;&#x7279;&#x5B9A;&#x306E;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306B;&#x5BFE;&#x3059;&#x308B;<strong>&#x30DA;&#x30A4;&#x30ED;&#x30FC;&#x30C9;</strong>&#x3068;&#x547C;&#x3073;&#x307E;&#x3059;:</p>
<pre class="language-"><code class="lang-js"><span class="token comment" spellcheck="true">// ...</span>
mutations<span class="token punctuation">:</span> <span class="token punctuation">{</span>
  increment <span class="token punctuation">(</span>state<span class="token punctuation">,</span> n<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    state<span class="token punctuation">.</span>count <span class="token operator">+</span><span class="token operator">=</span> n
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<pre class="language-"><code class="lang-js">store<span class="token punctuation">.</span><span class="token function">commit</span><span class="token punctuation">(</span><span class="token string">&apos;increment&apos;</span><span class="token punctuation">,</span> <span class="token number">10</span><span class="token punctuation">)</span>
</code></pre>
<p>&#x307B;&#x3068;&#x3093;&#x3069;&#x306E;&#x5834;&#x5408;&#x3001;&#x30DA;&#x30A4;&#x30ED;&#x30FC;&#x30C9;&#x306F;&#x30AA;&#x30D6;&#x30B8;&#x30A7;&#x30AF;&#x30C8;&#x306B;&#x3059;&#x3079;&#x304D;&#x3067;&#x3059;&#x3002;&#x305D;&#x3046;&#x3059;&#x308B;&#x3053;&#x3068;&#x3067;&#x8907;&#x6570;&#x306E;&#x30D5;&#x30A3;&#x30FC;&#x30EB;&#x30C9;&#x3092;&#x542B;&#x3081;&#x3089;&#x308C;&#x308B;&#x3088;&#x3046;&#x306B;&#x306A;&#x308A;&#x3001;&#x307E;&#x305F;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x304C;&#x3088;&#x308A;&#x8A18;&#x8FF0;&#x7684;&#x306B;&#x8A18;&#x9332;&#x3055;&#x308C;&#x308B;&#x3088;&#x3046;&#x306B;&#x306A;&#x308A;&#x307E;&#x3059;:</p>
<pre class="language-"><code class="lang-js"><span class="token comment" spellcheck="true">// ...</span>
mutations<span class="token punctuation">:</span> <span class="token punctuation">{</span>
  increment <span class="token punctuation">(</span>state<span class="token punctuation">,</span> payload<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    state<span class="token punctuation">.</span>count <span class="token operator">+</span><span class="token operator">=</span> payload<span class="token punctuation">.</span>amount
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<pre class="language-"><code class="lang-js">store<span class="token punctuation">.</span><span class="token function">commit</span><span class="token punctuation">(</span><span class="token string">&apos;increment&apos;</span><span class="token punctuation">,</span> <span class="token punctuation">{</span>
  amount<span class="token punctuation">:</span> <span class="token number">10</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
</code></pre>
<h3 id="&#x30AA;&#x30D6;&#x30B8;&#x30A7;&#x30AF;&#x30C8;&#x30B9;&#x30BF;&#x30A4;&#x30EB;&#x306E;&#x30B3;&#x30DF;&#x30C3;&#x30C8;">&#x30AA;&#x30D6;&#x30B8;&#x30A7;&#x30AF;&#x30C8;&#x30B9;&#x30BF;&#x30A4;&#x30EB;&#x306E;&#x30B3;&#x30DF;&#x30C3;&#x30C8;</h3>
<p>&#x307E;&#x305F; <code>type</code> &#x30D7;&#x30ED;&#x30D1;&#x30C6;&#x30A3;&#x3092;&#x6301;&#x3064;&#x30AA;&#x30D6;&#x30B8;&#x30A7;&#x30AF;&#x30C8;&#x3092;&#x4F7F;&#x3063;&#x3066;&#x3001;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x3092;&#x30B3;&#x30DF;&#x30C3;&#x30C8;&#x3059;&#x308B;&#x3053;&#x3068;&#x3082;&#x3067;&#x304D;&#x307E;&#x3059;:</p>
<pre class="language-"><code class="lang-js">store<span class="token punctuation">.</span><span class="token function">commit</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
  type<span class="token punctuation">:</span> <span class="token string">&apos;increment&apos;</span><span class="token punctuation">,</span>
  amount<span class="token punctuation">:</span> <span class="token number">10</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
</code></pre>
<p>&#x30AA;&#x30D6;&#x30B8;&#x30A7;&#x30AF;&#x30C8;&#x30B9;&#x30BF;&#x30A4;&#x30EB;&#x3067;&#x30B3;&#x30DF;&#x30C3;&#x30C8;&#x3059;&#x308B;&#x3068;&#x304D;&#x3001;&#x30AA;&#x30D6;&#x30B8;&#x30A7;&#x30AF;&#x30C8;&#x5168;&#x4F53;&#x304C;&#x30DA;&#x30A4;&#x30ED;&#x30FC;&#x30C9;&#x3068;&#x3057;&#x3066;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x30CF;&#x30F3;&#x30C9;&#x30E9;&#x306B;&#x6E21;&#x3055;&#x308C;&#x307E;&#x3059;&#x3002;&#x3057;&#x305F;&#x304C;&#x3063;&#x3066;&#x30CF;&#x30F3;&#x30C9;&#x30E9;&#x306E;&#x4F8B;&#x306F;&#x4E0A;&#x8A18;&#x3068;&#x540C;&#x3058;&#x3067;&#x3059;:</p>
<pre class="language-"><code class="lang-js">mutations<span class="token punctuation">:</span> <span class="token punctuation">{</span>
  increment <span class="token punctuation">(</span>state<span class="token punctuation">,</span> payload<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    state<span class="token punctuation">.</span>count <span class="token operator">+</span><span class="token operator">=</span> payload<span class="token punctuation">.</span>amount
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<h3 id="vue-&#x306E;&#x30EA;&#x30A2;&#x30AF;&#x30C6;&#x30A3;&#x30D6;&#x306A;&#x30EB;&#x30FC;&#x30EB;&#x306B;&#x5247;&#x3063;&#x305F;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;">Vue &#x306E;&#x30EA;&#x30A2;&#x30AF;&#x30C6;&#x30A3;&#x30D6;&#x306A;&#x30EB;&#x30FC;&#x30EB;&#x306B;&#x5247;&#x3063;&#x305F;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;</h3>
<p>Vuex &#x30B9;&#x30C8;&#x30A2;&#x306E;&#x72B6;&#x614B;&#x306F; Vue &#x306B;&#x3088;&#x3063;&#x3066;&#x30EA;&#x30A2;&#x30AF;&#x30C6;&#x30A3;&#x30D6;&#x306B;&#x306A;&#x3063;&#x3066;&#x3044;&#x308B;&#x306E;&#x3067;&#x3001;&#x72B6;&#x614B;&#x3092;&#x5909;&#x66F4;&#x3059;&#x308B;&#x3068;&#x3001;&#x72B6;&#x614B;&#x3092;&#x76E3;&#x8996;&#x3057;&#x3066;&#x3044;&#x308B; Vue &#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x306F;&#x81EA;&#x52D5;&#x7684;&#x306B;&#x66F4;&#x65B0;&#x3055;&#x308C;&#x307E;&#x3059;&#x3002;&#x3053;&#x308C;&#x306F; Vuex &#x306E;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306F;&#x3001;&#x901A;&#x5E38;&#x306E; Vue &#x3068;&#x52D5;&#x4F5C;&#x3055;&#x305B;&#x3066;&#x3044;&#x308B;&#x3068;&#x304D;&#x3068;&#x540C;&#x3058;&#x304F;&#x3001;&#x30EA;&#x30A2;&#x30AF;&#x30C6;&#x30A3;&#x30D6;&#x306A;&#x5024;&#x306B;&#x95A2;&#x3059;&#x308B;&#x6CE8;&#x610F;&#x304C;&#x5FC5;&#x8981;&#x3067;&#x3042;&#x308B;&#x3053;&#x3068;&#x3092;&#x610F;&#x5473;&#x3057;&#x307E;&#x3059;:</p>
<ol>
<li><p>&#x3042;&#x3089;&#x304B;&#x3058;&#x3081;&#x5168;&#x3066;&#x306E;&#x5FC5;&#x8981;&#x306A;&#x30D5;&#x30A3;&#x30FC;&#x30EB;&#x30C9;&#x306B;&#x3088;&#x3063;&#x3066;&#x3001;&#x30B9;&#x30C8;&#x30A2;&#x306E;&#x521D;&#x671F;&#x72B6;&#x614B;&#x3092;&#x521D;&#x671F;&#x5316;&#x3059;&#x308B;&#x3053;&#x3068;&#x304C;&#x671B;&#x307E;&#x3057;&#x3044;&#x3067;&#x3059;</p>
</li>
<li><p>&#x65B0;&#x3057;&#x3044;&#x30D7;&#x30ED;&#x30D1;&#x30C6;&#x30A3;&#x3092;&#x30AA;&#x30D6;&#x30B8;&#x30A7;&#x30AF;&#x30C8;&#x306B;&#x8FFD;&#x52A0;&#x3059;&#x308B;&#x3068;&#x304D;&#x3001;&#x4EE5;&#x4E0B;&#x306E;&#x3044;&#x305A;&#x308C;&#x304B;&#x304C;&#x5FC5;&#x8981;&#x3067;&#x3059;:</p>
<ul>
<li><p><code>Vue.set(obj, &apos;newProp&apos;, 123)</code> &#x3092;&#x4F7F;&#x7528;&#x3059;&#x308B;&#x3002;&#x3042;&#x308B;&#x3044;&#x306F;</p>
</li>
<li><p>&#x5168;&#x304F;&#x65B0;&#x3057;&#x3044;&#x30AA;&#x30D6;&#x30B8;&#x30A7;&#x30AF;&#x30C8;&#x3067;&#x65E2;&#x5B58;&#x306E;&#x30AA;&#x30D6;&#x30B8;&#x30A7;&#x30AF;&#x30C8;&#x3092;&#x7F6E;&#x304D;&#x63DB;&#x3048;&#x308B;&#x3002;&#x4F8B;&#x3048;&#x3070;&#x3001;stage-3 &#x306E;<a href="https://github.com/sebmarkbage/ecmascript-rest-spread" target="_blank">&#x30B9;&#x30D7;&#x30EC;&#x30C3;&#x30C9;&#x30B7;&#x30F3;&#x30BF;&#x30C3;&#x30AF;&#x30B9;&#xFF08;object spread syntax&#xFF09;</a> &#x3092;&#x4F7F;&#x7528;&#x3057;&#x3066;&#x3001;&#x6B21;&#x306E;&#x3088;&#x3046;&#x306B;&#x66F8;&#x304F;&#x3053;&#x3068;&#x304C;&#x3067;&#x304D;&#x307E;&#x3059;:</p>
<pre class="language-"><code class="lang-js">state<span class="token punctuation">.</span>obj <span class="token operator">=</span> <span class="token punctuation">{</span> <span class="token operator">...</span>state<span class="token punctuation">.</span>obj<span class="token punctuation">,</span> newProp<span class="token punctuation">:</span> <span class="token number">123</span> <span class="token punctuation">}</span>
</code></pre>
</li>
</ul>
</li>
</ol>
<h3 id="&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x30FB;&#x30BF;&#x30A4;&#x30D7;&#x306B;&#x5B9A;&#x6570;&#x3092;&#x4F7F;&#x7528;&#x3059;&#x308B;">&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x30FB;&#x30BF;&#x30A4;&#x30D7;&#x306B;&#x5B9A;&#x6570;&#x3092;&#x4F7F;&#x7528;&#x3059;&#x308B;</h3>
<p>&#x3044;&#x308D;&#x3044;&#x308D;&#x306A; Flux &#x5B9F;&#x88C5;&#x306B;&#x304A;&#x3044;&#x3066;&#x3001;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x30FB;&#x30BF;&#x30A4;&#x30D7;&#x306B;&#x5B9A;&#x6570;&#x3092;&#x4F7F;&#x7528;&#x3059;&#x308B;&#x3053;&#x3068;&#x304C;&#x5171;&#x901A;&#x3057;&#x3066;&#x898B;&#x3089;&#x308C;&#x308B;&#x30D1;&#x30BF;&#x30FC;&#x30F3;&#x3067;&#x3059;&#x3002;&#x3053;&#x308C;&#x306F;&#x30B3;&#x30FC;&#x30C9;&#x306B;&#x5BFE;&#x3057;&#x3066;&#x30EA;&#x30F3;&#x30C8;&#x30C4;&#x30FC;&#x30EB;&#x306E;&#x3088;&#x3046;&#x306A;&#x30C4;&#x30FC;&#x30EB;&#x3092;&#x5229;&#x7528;&#x3067;&#x304D;&#x308B;&#x3068;&#x3044;&#x3046;&#x5229;&#x70B9;&#x304C;&#x3042;&#x308A;&#x3001;&#x307E;&#x305F;&#x5358;&#x4E00;&#x30D5;&#x30A1;&#x30A4;&#x30EB;&#x306B;&#x5168;&#x3066;&#x306E;&#x5B9A;&#x6570;&#x3092;&#x8A2D;&#x5B9A;&#x3059;&#x308B;&#x3053;&#x3068;&#x306B;&#x3088;&#x3063;&#x3066;&#x3001;&#x5171;&#x540C;&#x3067;&#x4F5C;&#x696D;&#x3059;&#x308B;&#x4EBA;&#x306B;&#x3001;&#x30A2;&#x30D7;&#x30EA;&#x30B1;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x5168;&#x4F53;&#x3067;&#x4F55;&#x306E;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x304C;&#x53EF;&#x80FD;&#x3067;&#x3042;&#x308B;&#x304B;&#x3092;&#x4E00;&#x76EE;&#x898B;&#x305F;&#x3060;&#x3051;&#x3067;&#x7406;&#x89E3;&#x3067;&#x304D;&#x308B;&#x3088;&#x3046;&#x306B;&#x3057;&#x307E;&#x3059;:</p>
<pre class="language-"><code class="lang-js"><span class="token comment" spellcheck="true">// mutation-types.js</span>
<span class="token keyword">export</span> <span class="token keyword">const</span> SOME_MUTATION <span class="token operator">=</span> <span class="token string">&apos;SOME_MUTATION&apos;</span>
</code></pre>
<pre class="language-"><code class="lang-js"><span class="token comment" spellcheck="true">// store.js</span>
<span class="token keyword">import</span> Vuex <span class="token keyword">from</span> <span class="token string">&apos;vuex&apos;</span>
<span class="token keyword">import</span> <span class="token punctuation">{</span> SOME_MUTATION <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">&apos;./mutation-types&apos;</span>

<span class="token keyword">const</span> store <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Vuex<span class="token punctuation">.</span>Store</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
  state<span class="token punctuation">:</span> <span class="token punctuation">{</span> <span class="token operator">...</span> <span class="token punctuation">}</span><span class="token punctuation">,</span>
  mutations<span class="token punctuation">:</span> <span class="token punctuation">{</span>
    <span class="token comment" spellcheck="true">// &#x5B9A;&#x6570;&#x3092;&#x95A2;&#x6570;&#x540D;&#x3068;&#x3057;&#x3066;&#x4F7F;&#x7528;&#x3067;&#x304D;&#x308B; ES2015 &#x306E;&#x7B97;&#x51FA;&#x30D7;&#x30ED;&#x30D1;&#x30C6;&#x30A3;&#x540D;&#xFF08;computed property name&#xFF09;&#x6A5F;&#x80FD;&#x3092;&#x4F7F;&#x7528;&#x3067;&#x304D;&#x307E;&#x3059;</span>
    <span class="token punctuation">[</span>SOME_MUTATION<span class="token punctuation">]</span> <span class="token punctuation">(</span>state<span class="token punctuation">)</span> <span class="token punctuation">{</span>
      <span class="token comment" spellcheck="true">// &#x72B6;&#x614B;&#x3092;&#x5909;&#x66F4;&#x3059;&#x308B;</span>
    <span class="token punctuation">}</span>
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
</code></pre>
<p>&#x5B9A;&#x6570;&#x3092;&#x4F7F;&#x7528;&#x3059;&#x308B;&#x304B;&#x3069;&#x3046;&#x304B;&#x306F;&#x597D;&#x307F;&#x306E;&#x554F;&#x984C;&#x3067;&#x3059;&#x3002;&#x591A;&#x304F;&#x306E;&#x958B;&#x767A;&#x8005;&#x306B;&#x3088;&#x308B;&#x5927;&#x898F;&#x6A21;&#x306A;&#x30D7;&#x30ED;&#x30B8;&#x30A7;&#x30AF;&#x30C8;&#x3067;&#x5F79;&#x306B;&#x7ACB;&#x3061;&#x307E;&#x3059;&#x304C;&#x3001;&#x5B8C;&#x5168;&#x306B;&#x30AA;&#x30D7;&#x30B7;&#x30E7;&#x30F3;&#x306A;&#x306E;&#x3067;&#x3001;&#x3082;&#x3057;&#x304A;&#x6C17;&#x306B;&#x53EC;&#x3055;&#x306A;&#x3051;&#x308C;&#x3070;&#x4F7F;&#x7528;&#x3057;&#x306A;&#x304F;&#x3066;&#x3082;&#x69CB;&#x3044;&#x307E;&#x305B;&#x3093;&#x3002;</p>
<h3 id="&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306F;&#x540C;&#x671F;&#x7684;&#x3067;&#x306A;&#x3051;&#x308C;&#x3070;&#x306A;&#x3089;&#x306A;&#x3044;">&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306F;&#x540C;&#x671F;&#x7684;&#x3067;&#x306A;&#x3051;&#x308C;&#x3070;&#x306A;&#x3089;&#x306A;&#x3044;</h3>
<p>&#x3072;&#x3068;&#x3064;&#x306E;&#x91CD;&#x8981;&#x306A;&#x30EB;&#x30FC;&#x30EB;&#x3092;&#x899A;&#x3048;&#x3066;&#x304A;&#x304D;&#x307E;&#x3057;&#x3087;&#x3046;&#x3002;&#x305D;&#x308C;&#x306F;<strong>&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x30CF;&#x30F3;&#x30C9;&#x30E9;&#x95A2;&#x6570;&#x306F;&#x540C;&#x671F;&#x7684;&#x3067;&#x306A;&#x3051;&#x308C;&#x3070;&#x306A;&#x3089;&#x306A;&#x3044;</strong>&#x3068;&#x3044;&#x3046;&#x3053;&#x3068;&#x3067;&#x3059;&#x3002;&#x306A;&#x305C;&#x304B;&#xFF1F;&#x6B21;&#x306E;&#x4F8B;&#x3067;&#x8003;&#x3048;&#x3066;&#x307F;&#x307E;&#x3057;&#x3087;&#x3046;:</p>
<pre class="language-"><code class="lang-js">mutations<span class="token punctuation">:</span> <span class="token punctuation">{</span>
  someMutation <span class="token punctuation">(</span>state<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    api<span class="token punctuation">.</span><span class="token function">callAsyncMethod</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">&gt;</span> <span class="token punctuation">{</span>
      state<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>&#x3044;&#x307E;&#x3001;&#x958B;&#x767A;&#x30C4;&#x30FC;&#x30EB;&#x306E;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306E;&#x30ED;&#x30B0;&#x3092;&#x898B;&#x306A;&#x304C;&#x3089;&#x3001;&#x30A2;&#x30D7;&#x30EA;&#x30B1;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306E;&#x30C7;&#x30D0;&#x30C3;&#x30B0;&#x3092;&#x884C;&#x3063;&#x3066;&#x3044;&#x308B;&#x3053;&#x3068;&#x3092;&#x60F3;&#x50CF;&#x3057;&#x3066;&#x304F;&#x3060;&#x3055;&#x3044;&#x3002;&#x5168;&#x3066;&#x306E;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x3092;&#x30ED;&#x30B0;&#x306B;&#x8A18;&#x9332;&#x3059;&#x308B;&#x305F;&#x3081;&#x306B;&#x306F;&#x3001;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306E;&#x524D;&#x5F8C;&#x306E;&#x72B6;&#x614B;&#x306E;&#x30B9;&#x30CA;&#x30C3;&#x30D7;&#x30B7;&#x30E7;&#x30C3;&#x30C8;&#x3092;&#x6355;&#x6349;&#x3059;&#x308B;&#x3053;&#x3068;&#x304C;&#x5FC5;&#x8981;&#x3067;&#x3059;&#x3002;&#x3057;&#x304B;&#x3057;&#x3001;&#x4E0A;&#x306E;&#x4F8B;&#x306B;&#x3042;&#x308B;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x5185;&#x306E;&#x975E;&#x540C;&#x671F;&#x30B3;&#x30FC;&#x30EB;&#x30D0;&#x30C3;&#x30AF;&#x306F;&#x3001;&#x305D;&#x308C;&#x3092;&#x4E0D;&#x53EF;&#x80FD;&#x306B;&#x3057;&#x307E;&#x3059;: &#x305D;&#x306E;&#x30B3;&#x30FC;&#x30EB;&#x30D0;&#x30C3;&#x30AF;&#x306F;&#x3001;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x304C;&#x30B3;&#x30DF;&#x30C3;&#x30C8;&#x3055;&#x308C;&#x305F;&#x6642;&#x70B9;&#x3067;&#x306F;&#x307E;&#x3060;&#x547C;&#x3073;&#x51FA;&#x3055;&#x308C;&#x3066;&#x3044;&#x307E;&#x305B;&#x3093;&#x3002;&#x305D;&#x3057;&#x3066;&#x3001;&#x30B3;&#x30FC;&#x30EB;&#x30D0;&#x30C3;&#x30AF;&#x304C;&#x5B9F;&#x969B;&#x306B;&#x3044;&#x3064;&#x547C;&#x3073;&#x51FA;&#x3055;&#x308C;&#x308B;&#x304B;&#x3092;&#x3001;&#x958B;&#x767A;&#x30C4;&#x30FC;&#x30EB;&#x306F;&#x77E5;&#x308B;&#x8853;&#x304C;&#x3042;&#x308A;&#x307E;&#x305B;&#x3093;&#x3002;&#x3044;&#x304B;&#x306A;&#x308B;&#x72B6;&#x614B;&#x5909;&#x66F4;&#x3067;&#x3082;&#x3001;&#x30B3;&#x30FC;&#x30EB;&#x30D0;&#x30C3;&#x30AF;&#x5185;&#x3067;&#x8D77;&#x304D;&#x308B;&#x5834;&#x5408;&#x306F;&#x672C;&#x8CEA;&#x7684;&#x306B;&#x8FFD;&#x8DE1;&#x4E0D;&#x53EF;&#x80FD;&#x3067;&#x3059;&#x3002;</p>
<h3 id="&#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x5185;&#x306B;&#x304A;&#x3051;&#x308B;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306E;&#x30B3;&#x30DF;&#x30C3;&#x30C8;">&#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x5185;&#x306B;&#x304A;&#x3051;&#x308B;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306E;&#x30B3;&#x30DF;&#x30C3;&#x30C8;</h3>
<p><code>this.$store.commit(&apos;xxx&apos;)</code> &#x3068;&#x66F8;&#x304F;&#x304B;&#x3001;&#x3082;&#x3057;&#x304F;&#x306F;&#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x306E;&#x30E1;&#x30BD;&#x30C3;&#x30C9;&#x3092; <code>store.commit</code> &#x306B;&#x30DE;&#x30C3;&#x30D4;&#x30F3;&#x30B0;&#x3059;&#x308B; <code>mapMutations</code> &#x30D8;&#x30EB;&#x30D1;&#x30FC;&#x3092;&#x547C;&#x3073;&#x51FA;&#x3059;&#x3053;&#x3068;&#xFF08;&#x30EB;&#x30FC;&#x30C8;&#x306E; <code>store</code> &#x306E;&#x6CE8;&#x5165;&#x304C;&#x5FC5;&#x8981;&#xFF09;&#x3067;&#x3001;&#x30B3;&#x30F3;&#x30DD;&#x30FC;&#x30CD;&#x30F3;&#x30C8;&#x5185;&#x3067;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x3092;&#x30B3;&#x30DF;&#x30C3;&#x30C8;&#x3067;&#x304D;&#x307E;&#x3059;:</p>
<pre class="language-"><code class="lang-js"><span class="token keyword">import</span> <span class="token punctuation">{</span> mapMutations <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">&apos;vuex&apos;</span>

<span class="token keyword">export</span> <span class="token keyword">default</span> <span class="token punctuation">{</span>
  <span class="token comment" spellcheck="true">// ...</span>
  methods<span class="token punctuation">:</span> <span class="token punctuation">{</span>
    <span class="token operator">...</span><span class="token function">mapMutations</span><span class="token punctuation">(</span><span class="token punctuation">[</span>
      <span class="token string">&apos;increment&apos;</span><span class="token punctuation">,</span> <span class="token comment" spellcheck="true">// `this.increment()` &#x3092; `this.$store.commit(&apos;increment&apos;)` &#x306B;&#x30DE;&#x30C3;&#x30D4;&#x30F3;&#x30B0;&#x3059;&#x308B;</span>

      <span class="token comment" spellcheck="true">// mapMutations &#x306F;&#x30DA;&#x30A4;&#x30ED;&#x30FC;&#x30C9;&#x30B5;&#x30DD;&#x30FC;&#x30C8;&#x3059;&#x308B;:</span>
      <span class="token string">&apos;incrementBy&apos;</span> <span class="token comment" spellcheck="true">// `this.incrementBy(amount)` &#x3092; `this.$store.commit(&apos;incrementBy&apos;, amount)` &#x306B;&#x30DE;&#x30C3;&#x30D4;&#x30F3;&#x30B0;&#x3059;&#x308B;</span>
    <span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
    <span class="token operator">...</span><span class="token function">mapMutations</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
      add<span class="token punctuation">:</span> <span class="token string">&apos;increment&apos;</span> <span class="token comment" spellcheck="true">// `this.add()` &#x3092; `this.$store.commit(&apos;increment&apos;)` &#x306B;&#x30DE;&#x30C3;&#x30D4;&#x30F3;&#x30B0;&#x3059;&#x308B;</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<h3 id="&#x30A2;&#x30AF;&#x30B7;&#x30E7;&#x30F3;&#x3078;&#x5411;&#x3051;&#x3066;">&#x30A2;&#x30AF;&#x30B7;&#x30E7;&#x30F3;&#x3078;&#x5411;&#x3051;&#x3066;</h3>
<p>&#x72B6;&#x614B;&#x5909;&#x66F4;&#x3092;&#x975E;&#x540C;&#x671F;&#x306B;&#x7D44;&#x307F;&#x5408;&#x308F;&#x305B;&#x308B;&#x3053;&#x3068;&#x306F;&#x3001;&#x30D7;&#x30ED;&#x30B0;&#x30E9;&#x30E0;&#x306E;&#x52D5;&#x304D;&#x3092;&#x4E88;&#x6E2C;&#x3059;&#x308B;&#x3053;&#x3068;&#x3092;&#x975E;&#x5E38;&#x306B;&#x56F0;&#x96E3;&#x306B;&#x3057;&#x307E;&#x3059;&#x3002;&#x4F8B;&#x3048;&#x3070;&#x3001;&#x72B6;&#x614B;&#x3092;&#x5909;&#x66F4;&#x3059;&#x308B;&#x975E;&#x540C;&#x671F;&#x30B3;&#x30FC;&#x30EB;&#x30D0;&#x30C3;&#x30AF;&#x3092;&#x6301;&#x3063;&#x305F; 2&#x3064;&#x306E;&#x30E1;&#x30BD;&#x30C3;&#x30C9;&#x3092;&#x4E21;&#x65B9;&#x547C;&#x3073;&#x51FA;&#x3059;&#x3068;&#x304D;&#x3001;&#x305D;&#x308C;&#x3089;&#x304C;&#x3044;&#x3064;&#x547C;&#x3073;&#x51FA;&#x3055;&#x308C;&#x305F;&#x304B;&#x3001;&#x3069;&#x3061;&#x3089;&#x304C;&#x5148;&#x306B;&#x547C;&#x3073;&#x51FA;&#x3055;&#x308C;&#x305F;&#x304B;&#x3092;&#x3001;&#x3069;&#x3046;&#x3084;&#x3063;&#x3066;&#x77E5;&#x308C;&#x3070;&#x3088;&#x3044;&#x306E;&#x3067;&#x3057;&#x3087;&#x3046;&#xFF1F;&#x3053;&#x308C;&#x304C;&#x307E;&#x3055;&#x306B;&#x3001;&#x72B6;&#x614B;&#x5909;&#x66F4;&#x3068;&#x975E;&#x540C;&#x671F;&#x306E; 2&#x3064;&#x306E;&#x6982;&#x5FF5;&#x3092;&#x5206;&#x96E2;&#x3057;&#x305F;&#x3044;&#x3068;&#x3044;&#x3046;&#x7406;&#x7531;&#x3067;&#x3059;&#x3002;Vuex &#x3067;&#x306F;<strong>&#x5168;&#x3066;&#x306E;&#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306F;&#x540C;&#x671F;&#x7684;&#x306B;&#x884C;&#x3046;</strong>&#x3068;&#x3044;&#x3046;&#x4F5C;&#x6CD5;&#x306B;&#x306A;&#x3063;&#x3066;&#x3044;&#x307E;&#x3059;:</p>
<pre class="language-"><code class="lang-js">store<span class="token punctuation">.</span><span class="token function">commit</span><span class="token punctuation">(</span><span class="token string">&apos;increment&apos;</span><span class="token punctuation">)</span>
<span class="token comment" spellcheck="true">// &quot;increment&quot; &#x30DF;&#x30E5;&#x30FC;&#x30C6;&#x30FC;&#x30B7;&#x30E7;&#x30F3;&#x306B;&#x3088;&#x308B;&#x72B6;&#x614B;&#x5909;&#x66F4;&#x306F;&#x3001;&#x3053;&#x306E;&#x6642;&#x70B9;&#x3067;&#x884C;&#x308F;&#x308C;&#x308B;&#x3079;&#x304D;&#x3067;&#x3059;</span>
</code></pre>
<p>&#x975E;&#x540C;&#x671F;&#x7684;&#x306A;&#x547D;&#x4EE4;&#x3092;&#x6271;&#x3046;&#x305F;&#x3081;&#x306B;<a href="actions.html">&#x30A2;&#x30AF;&#x30B7;&#x30E7;&#x30F3;</a>&#x3092;&#x898B;&#x3066;&#x307F;&#x307E;&#x3057;&#x3087;&#x3046;&#x3002;</p>

                                
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