JavaScript functions

Question

Can someone please help me with this code
https://sololearn.com/compiler-playground/WbWvNHLQDt0B/?ref=apphttps://sololearn.com/compiler-playground/WbWvNHLQDt0B/?ref=app

Answer 1

Check line 3 in the JS tab: It should be "a", not a.

Answer 2

Thanks but
What functions should I use to make menu menu appear