gmap3 | jQuery plugin to create Google maps | Frontend Framework library
kandi X-RAY | gmap3 Summary
kandi X-RAY | gmap3 Summary
jQuery plugin to create Google maps
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Top functions reviewed by kandi - BETA
- Initialize the gfmmap .
- Initialize a new Cluster .
- Redraw map
- Creates a overlay with the given map .
- Initialize an overlay
- Attach an event listeners to an instance
- Helper function to resolve lat lng
- Wrap a function in a promise
- Convert to Promise
- Initialize a Handler
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gmap3 Examples and Code Snippets
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QUESTION
I'm trying to use generic programming as described in the paper Scrap Your Boilerplate with class. That is, being able to "recurse" down with the members of a user-defined class, as opposed to a fixed set of types that are known when the traversal code is written.
It appears the corresponding hackage package http://hackage.haskell.org/package/syb-with-class can be used for this purpose, but most of the online discussion (for instance this question from 7 years ago: Does the current SYB permit extension of generic functions with new types?) implies current GHC.Generics
to be preferred. In particular, that implementation seems to predate the use of constraint-kinds which is supposed to make this sort of programming easier. However, the GHC.Generics
framework does not seem to permit traversals with extensible functions.
What's the best alternative these days for doing generic functions with extensible types? If at all possible, I'd like to avoid using "internal" representations (i.e., any sort of K1
, M1
etc. combinators) and would love to be able to use a Uniplate like interface. Any pointers to papers, blog-posts, or general advice would be appreciated.
ANSWER
Answered 2020-Jul-15 at 22:07Well, here's a blog post for you...
If you want to do generic programming as described in the "Scrap Your Boilerplate with class" paper, then the recommended method is to use the syb-with-class
package, notwithstanding that Stack Overflow answer, since the syb-with-class
package is actively maintained and works just fine.
If you want to do generic programming with extensible types directly with GHC.Generics
, then -- as with any other direct use of GHC.Generic
-- you can't really avoid using the K1
, M1
, etc. representation. It's unfortunate that the documentation makes this representation sound like an internal implementation detail that is subject to change at any minute.
The potential advantage of GHC.Generics
is that it's naturally type-class-based, so you get the type extensibility for free. For example, to take the gsize
example from the SYB with class paper, you can implement it in GHC.Generics
directly with a pair of classes, one for handling the generic structure, and another for handling the specific types along the way:
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