Is there a way to detect command line execution?

[leohallier]

I want to detect whether my code is executed through Pluto or with the command line (ie. >julia notebook.jl) so diagnostic plots and similar things do not get computed unnecessarily. So far I have been using @bind missingifcmd html"<input type=range min=5 max=5>" and the ismissing() function. The problem is that during Pluto execution it first gets set to missing anyway for a short time causing unwanted behaviour at startup. Is there a better solution?

[fonsp]

You can use isdefined(:PlutoRunner), it will always be supported