Hello!

I am learning to use Shiny.

Imagine my ui.r file contains two different inputs that I can change:

sidebarPanel(
  numericInput("input1", "My input 1:", 5),
  numericInput("input2", "My input 2:", 10)
)


And I am generating (in server.r file) the sum of those two using
reactive({...

If I change just one of the inputs, I immediately get the changed result -
because the whole expression is reactive.

Question: is there any way to delay the production of the output until one
wants it to be produced (i.e., only after one selected all the correct
inputs needed) and have something like a "RUN" button?

Thank you!

-- 
Dimitri Liakhovitski

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