Elm Language Debugging Time-traveling debugger
Example
0.170.18.0
At the time of writing (July 2016) elm-reactor has been temporarily stripped of its time traveling functionality. It's possible to get it, though, using the jinjor/elm-time-travel package.
It's usage mirrors Html.App or Navigation modules' program* functions, for example instead of:
import Html.App
main =
Html.App.program
{ init = init
, update = update
, view = view
, subscriptions = subscriptions
}
you'd write:
import TimeTravel.Html.App
main =
TimeTravel.Html.App.program
{ init = init
, update = update
, view = view
, subscriptions = subscriptions
}
(Of course, after installing the package with elm-package.)
The interface of your app changes as a result, see one of the demos.
0.18.0
Since version 0.18.0 you can simply can compile your program with the --debug flag and get time travel debugging with no additional effort.
