Why error if we click on upload button

Question

https://code.sololearn.com/WS7P4xKwX6FR/?ref=app

Answer 1

It is missing semi colons and you have declared a variable at line 7 but didn't use it

Answer 2

✨Tuktuk.💞...
Sergei Romanov
Dio
Chisom Amadi [[[[[[[[INACTIVE]]]]]]]]]
Harsh [ Inactive ]
Mirielle[ InAcTiVe ]
Martin
Kirti
Gordon

Answer 3

Probably fileReader is not supported in Sololearn. Try to run your code somewhere else.
Edited: actually it should be FileReader, but it seems that file loading is not supported here on Sololearn - it is not possible to select a file. I tried your code with Windows 10 and Chrome and it was working fine after fileReader -> FileReader change.