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                            # vue回調函數的理解

> vue回調函數

```
<pre class="calibre14">```
<span class="token2">function</span> <span class="token3">test</span><span class="token1">(</span>aaa<span class="token1">,</span>bbb<span class="token1">)</span><span class="token1">{</span>
	<span class="token3">aaa</span><span class="token1">(</span><span class="token4">'helloworld'</span><span class="token1">)</span>
<span class="token1">}</span>
相當于：
<span class="token3">test</span><span class="token1">(</span><span class="token2">function</span><span class="token1">(</span><span class="token1">)</span><span class="token1">{</span><span class="token1">}</span><span class="token1">,</span><span class="token2">function</span><span class="token1">(</span><span class="token1">)</span><span class="token1">{</span><span class="token1">}</span><span class="token1">)</span>

思路邏輯：
<span class="token3">aaa</span> <span class="token">=</span> <span class="token2">function</span><span class="token1">(</span><span class="token1">)</span><span class="token1">{</span><span class="token1">}</span>

<span class="token3">aaa</span><span class="token1">(</span><span class="token1">)</span>就是調用這個匿名函數

<span class="token3">aaa</span><span class="token1">(</span><span class="token4">'helloworld'</span><span class="token1">)</span> <span class="token">=</span> <span class="token2">function</span><span class="token1">(</span>res<span class="token1">)</span><span class="token1">{</span>

<span class="token1">}</span>

相當于helloworld 傳給了res

```
```
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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