'isPrototypeOf()' Syntax, Parameters and Note : isPrototypeOf « Javascript Methods « JavaScript Reference

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3. isPrototypeOf

'isPrototypeOf()' Syntax, Parameters and Note

Note:

Is the specified object an instance of Object. 
Returns true or false.
    
Syntax:
    
objectName.isPrototypeOf(param1)

Parameters:
    param1   Required; the object to check.

    

      
      

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