[elm-discuss] Polymorphic components

2017-02-17 Thread Steffen 
Hello,

I'm new to Elm and stuck with a problem. In my model I have a list of 
components of different types. Now I'm trying to get the view and update 
functions right.

This has surely already been solved, but I didn't find a solution 
anywhere...

Minimal example:

https://ellie-app.com/qsQjTYcs2va1/3

Uncomment line 166 to see what I mean. I would need to "cast" 
ComponentMessage and -Model to their Int subtypes.

What did I get wrong?

Sincerely,
Steffen

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Re: [elm-discuss] Community version of the elm guide gitbook?

2017-02-17 Thread 'Rupert Smith' via Elm Discuss 
On Friday, February 17, 2017 at 4:59:48 PM UTC, Peter Damoc wrote:
>
> Is it elm-tutorial by any chance?
> https://www.elm-tutorial.org/en/01-foundations/06-type-aliases.html
>

That's the one thanks. 

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Re: [elm-discuss] How can you find out why JSON decoding failed?

2017-02-17 Thread Rex van der Spuy 
Thank you Overmind!

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Re: [elm-discuss] How can you find out why JSON decoding failed?

2017-02-17 Thread OvermindDL1 
Hehe, happens to us all.  ^.^


On Friday, February 17, 2017 at 11:54:47 AM UTC-7, Rex van der Spuy wrote:
>
> Oops!! Ignore the error above!
> It works now completely!!!
>
> I just had another stray Debug.crash in my code that I had forgotten about 
> so I removed it.
>
> Thanks so much Peter, I could not have done this without your help
>
>

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Re: [elm-discuss] How can you find out why JSON decoding failed?

2017-02-17 Thread Rex van der Spuy 
Oops!! Ignore the error above!
It works now completely!!!

I just had another stray Debug.crash in my code that I had forgotten about 
so I removed it.

Thanks so much Peter, I could not have done this without your help

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[elm-discuss] Re: `value` attribute disappearing from an `option` tag - possible VirtualDom problem?

2017-02-17 Thread Bernardo 
The behaviour I see is that when first rendered there is no value 
attribute, but after any update to the dom, the attribute is set correctly 
(to  or  (but not in IE11)). Looking at the 
source it seems to me that this is one of those cases where there is a 
distinction between setting a dom attribute and setting a dom property. The 
problem is not in the VirtualDom but in the Html library. The "value" 
attribute is defined  as a stringProperty while it should be an attribute 
(at least for the option tag) so it is set with "setAttribute()". 

https://github.com/elm-lang/html/blob/master/properties-vs-attributes.md


On Thursday, 9 February 2017 12:38:19 UTC-3, Brian Marick wrote:
>
> I have an app with multiple tabs. (See below.) The user clicks on a tab to 
> navigate (using elm-lang/navigation) to another page. The “home” page has a 
> select box on it, containing this: 
>
> 
>   Any
>   bovine
>   equine
> 
>
> (As shown by Firefox inspector.) After changing the page and immediately 
> clicking to go back to the home page tab, the inspector shows that the 
> first option has changed to this:
>
>   Any
>
> That only happens when the value is an empty string - adding as little as 
> a space makes the problem go away.
>
> Is this a bug?
>
>

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Re: [elm-discuss] How can you find out why JSON decoding failed?

2017-02-17 Thread Peter Damoc 
What does Json.Decode.decodeValue returns?

Can you share some code?






On Fri, Feb 17, 2017 at 7:09 PM, Rex van der Spuy 
wrote:

> Yes - how would I get the Err result?
>
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blog: http://damoc.ro/

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Re: [elm-discuss] How can you find out why JSON decoding failed?

2017-02-17 Thread Rex van der Spuy 
Yes - how would I get the Err result?

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Re: [elm-discuss] How can you find out why JSON decoding failed?

2017-02-17 Thread Peter Damoc 
Where is it failing silently?

Are you calling Json.Decode.decodeValue and not getting an Err?


On Fri, Feb 17, 2017 at 6:34 PM, Rex van der Spuy 
wrote:

> Hi Everyone!
>
> I'm trying to decode some JSON from localStorage.
> I'm able to load the JSON into my Elm app but the decoding is failing
> silently.
> Is there some way to find why decoding didn't succeed?
>
> Thanks!
>
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Re: [elm-discuss] Community version of the elm guide gitbook?

2017-02-17 Thread Peter Damoc 
Is it elm-tutorial by any chance?
https://www.elm-tutorial.org/en/01-foundations/06-type-aliases.html


On Fri, Feb 17, 2017 at 5:51 PM, 'Rupert Smith' via Elm Discuss <
elm-discuss@googlegroups.com> wrote:

> I seem to recall there is a community version of this that is more open to
> accepting contributions:
>
> https://guide.elm-lang.org/types/type_aliases.html
>
> Can't find it though... anyone?
>
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[elm-discuss] How can you find out why JSON decoding failed?

2017-02-17 Thread Rex van der Spuy 
Hi Everyone!

I'm trying to decode some JSON from localStorage.
I'm able to load the JSON into my Elm app but the decoding is failing 
silently.
Is there some way to find why decoding didn't succeed?

Thanks!

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[elm-discuss] Community version of the elm guide gitbook?

2017-02-17 Thread 'Rupert Smith' via Elm Discuss 
I seem to recall there is a community version of this that is more open to 
accepting contributions:

https://guide.elm-lang.org/types/type_aliases.html

Can't find it though... anyone?

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