Hello J.D.
Thanks for reply! I fix one detail in your code
let values = [($i("#dropdown1"), $i("#dropdown2"), $i("#dropdown3")]
By this “)” at the end
let values = [($i("#dropdown1"), $i("#dropdown2"), $i("#dropdown3"))]
Now i can have numbers by selecting the “dropdown3”, but it still does not perform the calculation. I’m studying what happen, if you have some idea i appreciate. Thanks again hero! jajajaja