Don't forget, the time-travelling debug mode is coming in 0.18. Do you think setting breakpoints like this is still going to be useful?
On Mon, Oct 24, 2016 at 5:59 AM, Robin Heggelund Hansen < skinney...@gmail.com> wrote: > Elm, as great as it is, doesn't save you from debugging every once in a > while. The one option we have now, is logging. Logging is great, but it can > quickly become painful in loops. Since Elm compiles to a single JS file > with long mangled names, setting a breakpoint from the code would sometimes > be the simplest way to properly debug your code. The generated JS isn't > that hard to understand either, it's a series of vars and function calls > for the most part. > > lørdag 22. oktober 2016 13.49.52 UTC+2 skrev John Orford følgende: >> >> It never occurred to me to debug the generated JS... can you sketch out >> your use case a bit more? >> >> On Sat, 22 Oct 2016 at 11:19 Robin Heggelund Hansen <skinn...@gmail.com> >> wrote: >> >>> While I spend a lot less time debugging in Elm than in JS, sometimes >>> it's useful to debug the generated Javascript. >>> >>> This would be greatly simplified, if it was possible to add a >>> `debugger;` statement to the code. >>> >>> What do people think of a new function added to the Debug module of >>> elm-lang/core, called breakpoint. It would work like the identity function, >>> but also include the `debugger;` statement, causing a breakpoint to happen >>> when the browsers dev-tools are open. >>> >>> used like: >>> >>> ``` >>> faultyFunction a b = >>> let >>> _ = Debug.breakpoint () >>> in >>> a + b >>> ``` >>> >>> Granted, this would cause a breakpoint to happen in the actual >>> Debug.breakpoint function, but since that function is very small, stepping >>> out of it is no big deal. The only other option I can think of is compiler >>> support, but I'm unsure how hard this would be to include. >>> >>> Opinions? >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Elm Discuss" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to elm-discuss...@googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- > You received this message because you are subscribed to the Google Groups > "Elm Discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to elm-discuss+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Elm Discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to elm-discuss+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
