Is there any purpose to redeclaring JavaScript variables?

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傲寒 2020-12-11 18:38
I am new to JavaScript.

      
      
        
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                   無奈伤痛
                                             
                
                
                (楼主)
            
              
              
                2020-12-11 19:02
              

            
            
                        
Also, a programmer might want to use var to localize a variable:



    
             
                                                        
            
            
              
                
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