Andreas Svensson syranide

## gist:34b155691a6f58091953

      
        
          
            
              
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                chenglou
                / gist:34b155691a6f58091953
            
            
              Last active
              April 5, 2021 19:15
            
              
                Better feature for React key
              
          
        
      
        
  
      
    key is pretty much crucial for state perservation in React. As of React 0.13 it can't do the following things:

Clone state

<Comp key={1} /><Comp key={1} />

Preserve component state across different parents: