Conditionalpanel Javascript Conditions In Shiny: Is There R %in% Operator In Javascript?

I am trying to build a shiny application using the conditionalPanel function from shiny package. The condition should be written in JavaScript but I would like to be able to use a

Solution 1:

According to this answer this condition should work (and it works for me) condition = "input.ModelVariables.indexOf('TP53') > -1"