In this d3 force layout viz project I'm trying to remove the user's ability to click on the bigger yellow nodes. I have an on-click, fire the clicknodeControl function,

 nodes.append('circle')
  .attr("r", 28)  
  .attr("id", "hoverdots")
  .style("opacity", 0) 
  .style("fill", "#00bedd") 
  .on("click", function(d) { return clicknodeControl(d.group); }) 
  .style("z-index", "10")
  .on("mouseover", mouseover)
  .on("mouseout", mouseout)

and then ideally this variable would pass through the clicknode function to one group of nodes but not the other:

 var clicknodeControl = d3.scaleOrdinal([`clicknode`, ``]);

This does not seem to be working in practice, the clicknode function is not being passed through.

Thanks if anyone has any ideas on this!!