When button not click by Jquery OnClick function, try to add $(document).ready. see below

When button not click by Jquery OnClick function, try to

add  $(document).ready. see below

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 $(document).ready('#button').click(function(event){              
   //  Ensure that the SP.UserProfiles.js file is loaded before the custom code runs.
   // SP.SOD.executeOrDelayUntilScriptLoaded(getCurrentUser, 'SP.UserProfiles.js');
     getCurrentUser();

  });

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