Executing JavaScript in the <head>, getElementById returns null

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旧巷少年郎 2021-01-05 00:49
I have following code

      
      
        
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                (楼主)
            
              
              
                2021-01-05 01:17
              

            
            
                        
This JS code will run before the DOM is ready so the node will not be found. To perform execution only once the DOM is ready, you could use the window.onload event handler.
    
             
                                                        
            
            
              
                
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