Clojurians Log v2

Usually you want to deref as close to the actual usage as possible to avoid any updates of the parent components. Note that if your ratom is actually a re-frame sub, then you should not deref it in a callback or event handler function. You have to deref it exactly inside the body of the component. Otherwise, there will be a memory leak.

oh wow, thanks. so dereferencing to get the value also marks a function for update inspection?

Not just any function but a view component, yes. And you also pass that value down a chain of components - they will all be updated if the value changes.

thanks

re-com has a deref-or-value function for that that's just used on almost every input value.

that seems worse

I disagree - when you only read from atoms, it's nice if you don't even need to remember if you have to pass a ratom or a value somewhere.

re-com splits reading and writing - usually the corresponding arguments are :model and :on-change.

thanks!

@smith.adriane adding reader functions is easy!

(read-string {:readers {'crux/id identity}}
               "{:id #crux/id \"hello\"}")

(obviously you might want to change identity to something proper, if you expect it to actually do something more useful than just returning whatever it is)

btw for "generic EDN" may be a good idea use :default

(clojure.edn/read-string 
  {:default tagged-literal}
  "#any :litteral")

cool. the demo no longer chokes on tagged literals and will print parse errors should they occur. thanks for the tips!