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                            Handlebars中提供的`{{#if}}`只接受一個`true or false`的參數，不能比較兩個值，我們可以通過使用Handlebars的`registerHelper`來自定義指令，如下代碼所示：
```
Handlebars.registerHelper("compare",function(v1,v2,options){
      if (v1 === v2) {
          return options.fn(this)
      }else{
          return options.inverse(this)
      }
})
```
`Handlebars.registerHelper`中的具體邏輯，可根據實際需求自定義，`Handlebars.registerHelper`里面的寫法完全和JS中一致。
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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