'onUnload' Syntax and Note : onUnload « Event Handlers Reference « JavaScript Reference

1. JavaScript Reference
2. Event Handlers Reference
3. onUnload

'onUnload' Syntax and Note

Note:
    
This event fires before the document begins to unload. 
The document will unload when 
   1)the user clicks the close button in the browser window, or 
   2)when the user goes to a different page.
    
      
      

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