ホームページ > 記事 > ウェブフロントエンド > 比较redux和reflux以及自己写个TinyFlux?
看了redux和reflux,感觉redux好复杂啊,看reflux,1个小时就能弄懂,可是看redux,1天下来都迷迷糊糊的。
感觉flux不就应该是view层发消息给store,store根据消息去修改数据,修改完数据后通知涉及到被修改的view组建刷新state吗。。。
然后我看着reflux的使用方式(它的源代码没怎么看,感觉还是多了),自己写了个tinyFlux。。。二楼附上。。各位看看。。。。可能还太幼稚了。。。欢迎批评啊。。。
<code class="language-js"><span class="c1">//TinyFlux.js</span>
<span class="kd">function</span> <span class="nx">createStore</span> <span class="p">(</span><span class="nx">store</span><span class="p">,</span> <span class="p">...</span><span class="nx">args</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">store</span><span class="p">)</span> <span class="p">{</span>
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="p">(</span><span class="s1">'请定义store'</span><span class="p">);</span>
<span class="p">};</span>
<span class="k">if</span> <span class="p">(</span><span class="k">typeof</span> <span class="nx">store</span><span class="p">.</span><span class="nx">init</span> <span class="o">===</span> <span class="s1">'function'</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">store</span><span class="p">.</span><span class="nx">init</span><span class="p">(</span><span class="nx">args</span><span class="p">);</span>
<span class="p">};</span>
<span class="k">if</span> <span class="p">(</span><span class="k">typeof</span> <span class="nx">store</span><span class="p">.</span><span class="nx">actions</span> <span class="o">!==</span> <span class="s1">'function'</span><span class="p">)</span> <span class="p">{</span>
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="p">(</span><span class="s1">'actions应该是一个返回一个对象的function,对象里的方法都要用箭头表达式来书写,利用箭头表达式的this绑定。'</span><span class="p">);</span>
<span class="p">};</span>
<span class="nx">store</span><span class="p">.</span><span class="nx">actions</span> <span class="o">=</span> <span class="nx">store</span><span class="p">.</span><span class="nx">actions</span><span class="p">();</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">store</span><span class="p">.</span><span class="nx">subscriber</span> <span class="o">||</span> <span class="nx">store</span><span class="p">.</span><span class="nx">emit</span><span class="p">)</span> <span class="p">{</span>
<span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="p">(</span><span class="s1">'不该存在subscriber和emit'</span><span class="p">);</span>
<span class="p">};</span>
<span class="nx">store</span><span class="p">.</span><span class="nx">subscriber</span> <span class="o">=</span> <span class="p">[];</span>
<span class="nx">store</span><span class="p">.</span><span class="nx">emit</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">argument</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">store</span><span class="p">.</span><span class="nx">subscriber</span><span class="p">.</span><span class="nx">forEach</span><span class="p">(</span><span class="nx">component</span> <span class="o">=></span> <span class="nx">component</span><span class="p">.</span><span class="nx">reload</span><span class="p">());</span>
<span class="p">};</span>
<span class="k">return</span> <span class="nx">store</span><span class="p">;</span>
<span class="p">}</span>
<span class="kd">function</span> <span class="nx">connect</span> <span class="p">(</span><span class="nx">store</span><span class="p">,</span> <span class="nx">def</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="p">{</span>
<span class="nx">getInitialState</span><span class="o">:</span> <span class="kd">function</span><span class="p">(){</span>
<span class="kd">var</span> <span class="nx">state</span> <span class="o">=</span> <span class="p">{};</span>
<span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">i</span> <span class="k">in</span> <span class="nx">def</span><span class="p">)</span> <span class="p">{</span>
<span class="k">try</span><span class="p">{</span>
<span class="nx">state</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span> <span class="o">=</span> <span class="nb">eval</span><span class="p">(</span><span class="s1">'store.'</span><span class="o">+</span><span class="nx">def</span><span class="p">[</span><span class="nx">i</span><span class="p">]);</span>
<span class="p">}</span> <span class="k">catch</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">console</span><span class="p">.</span><span class="nx">log</span><span class="p">(</span><span class="nx">err</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="k">return</span> <span class="nx">state</span><span class="p">;</span>
<span class="p">},</span>
<span class="nx">reload</span><span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="kd">var</span> <span class="nx">state</span> <span class="o">=</span> <span class="p">{};</span>
<span class="k">for</span> <span class="p">(</span><span class="kd">var</span> <span class="nx">i</span> <span class="k">in</span> <span class="nx">def</span><span class="p">)</span> <span class="p">{</span>
<span class="k">try</span><span class="p">{</span>
<span class="nx">state</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span> <span class="o">=</span> <span class="nb">eval</span><span class="p">(</span><span class="s1">'store.'</span><span class="o">+</span><span class="nx">def</span><span class="p">[</span><span class="nx">i</span><span class="p">]);</span>
<span class="p">}</span> <span class="k">catch</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">console</span><span class="p">.</span><span class="nx">log</span><span class="p">(</span><span class="nx">err</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="k">this</span><span class="p">.</span><span class="nx">setState</span><span class="p">(</span><span class="nx">state</span><span class="p">);</span>
<span class="p">},</span>
<span class="nx">componentDidMount</span><span class="o">:</span> <span class="kd">function</span><span class="p">(){</span>
<span class="nx">store</span><span class="p">.</span><span class="nx">subscriber</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="k">this</span><span class="p">);</span>
<span class="p">},</span>
<span class="nx">componentWillUnmount</span><span class="o">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">store</span><span class="p">.</span><span class="nx">subscriber</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="nx">store</span><span class="p">.</span><span class="nx">subscriber</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="k">this</span><span class="p">),</span><span class="mi">1</span><span class="p">);</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="p">}</span>
<span class="nx">module</span><span class="p">.</span><span class="nx">exports</span> <span class="o">=</span> <span class="p">{</span>
<span class="nx">createStore</span><span class="o">:</span> <span class="nx">createStore</span><span class="p">,</span>
<span class="nx">connect</span><span class="o">:</span> <span class="nx">connect</span>
<span class="p">}</span>
</code>