Retrieving a Server.R value in a .js script

I'm facing a problem where I need to access the value of a variable in my Server.R file (I'm using Shiny) in my javascript file. Specifically, I want the variable "i" in myFile.js to be assigned the value of my R variable "number". Can someone guide me on how to achieve this?

For example:

Server.R

...
number <- 5
...

myFile.js

...
var i = ??? // var i = number *is not working* 
...

Any assistance would be greatly appreciated.

Regards,

Matt

Answer №1

Special thanks to user123 for the solution that worked perfectly in my custom JavaScript file:

Server.R

count <- 10
observe({
   session$sendCustomMessage(type='updateCount', count) 
})

myFile.js

var x ;
Shiny.addCustomMessageHandler("updateCount",     
    function(count) {
     x = count;
    }
);

var x now holds the value 10 in my JavaScript code.

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