ChiTu | 采用TypeScript编写的轻量级单页面类库,帮助开发人员编写易维护的大规模项目。采用面向对象,事件驱动的编程模式。
kandi X-RAY | ChiTu Summary
kandi X-RAY | ChiTu Summary
采用TypeScript编写的轻量级单页面类库,帮助开发人员编写易维护的大规模项目。采用面向对象,事件驱动的编程模式。
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QUESTION
Iam trying to create artist gallery. Gallery is created but when i need to have 50 artists, i have to create 50 pages. So i need to change only direction to folder after link is clicked. What is the best way to do it ? Link to my gallery http://www.divart.sk/vg/krajina.php
links to artists
...ANSWER
Answered 2019-Jun-09 at 12:55You can do simple by passing the folder name to php script via Query String
using (Parse String) and ScanDir.
You'll have to create this structure:
http://www.divart.sk/vg/gallery.php?dir=the_artist_folder
http://www.divart.sk/vg/krajina/
http://www.divart.sk/vg/nicole/
http://www.divart.sk/vg/jonathan/
Where the folder name is the folder artist, while the gallery.php
is the php script that read the folder artist!
As requested in the comments, you can add artist info by loading a text file (is not the best way) put inside the folder artist, example:
http://www.divart.sk/vg/krajina/artist.txt
http://www.divart.sk/vg/nicole/artist.txt
http://www.divart.sk/vg/jonathan/artist.txt
Example of text file artist.txt
:
QUESTION
Coming from an OOP background, Haskell's type system and the way data constructors and typeclasses interact is difficult to conceptualize. I can understand how each are used for simple examples, but some more complication examples of data structures that are very well-suited for an OOP style are proving non-trivial to translate into similarly elegant and understandable types.
In particular, I have a problem with organizing a hierarchy of data such as the following.
This is a deeply nested hierarchical inheritance structure, and the lack of support for subtyping makes it unclear how to turn this structure into a natural-feeling alternative in Haskell. It may be fine to replace something like Polygon
with a sum data type, declaring it like
ANSWER
Answered 2017-Aug-31 at 11:47You can use sum types to represent the entire hierarchy, without losing structure. Something like this would do it:
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