'this' is undefined inside function(). angular 2 [duplicate]

Answer 1

'this' is not passed to your function scope, try

declare var UIkit:any;

deleteData(dataArr): void {
var that = this;
UIkit.modal.confirm('Are you sure you want to delete this?', function(){
  console.log(dataArr);
  console.log(that);
  //use service here...
  UIkit.modal.alert('Confirmed!');  
});
}