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What does the `forall` keyword in Haskell/GHC do?
...ypeVariables enabled.
Scoped Type Variables:
Scoped type variables helps one specify types for code inside where clauses. It makes the b in val :: b the same one as the b in foob :: forall a b. (b -> b) -> b -> (a -> b) -> Maybe a -> b.
A confusing point: you may hear that when ...
What is The difference between ListBox and ListView
...ve">
<ListView.Resources>
<GridView x:Key="one">
<GridViewColumn Header="ID" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding id}" /...
How to make a SPA SEO crawlable?
...bCategory' would probably be other phrases, such as 'communication' and 'phones' or 'computers' and 'laptops' for an electrical appliances store. Obviously there would be many different categories and sub categories. As you can see, the link is directly to the category, sub category and the product...
Can't operator == be applied to generic types in C#?
..., or would it use the overloaded version of the operator if a type defined one?"
I would have thought that == on the Generics would use the overloaded version, but the following test demonstrates otherwise. Interesting... I'd love to know why! If someone knows please share.
namespace TestProject...
Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
...g to write all that code for yourself. Typically a library will only offer one area of functionality (processing images or operating on zip files)
An API (application programming interface) is a term meaning the functions/methods in a library that you can call to ask it to do things for you - the i...
How to install packages offline?
.../myapp. ~/src/myapp/setup.py will have install_requires list that mentions one or more things that you have in your /pypi directory. Like so:
install_requires=[
'boto',
'Flask',
'Werkzeug',
# and so on
If you want to be able to run your app with all the necessary dependencies wh...
Can I have an onclick effect in CSS?
... for="demo">I'm a square. Click me.</label>
Here I've positioned the label right after the input in my markup. This is so that I can use the adjacent sibling selector (the + key) to select only the label that immediately follows my #demo checkbox. Since the :checked pseudo-class appli...
Why when a constructor is annotated with @JsonCreator, its arguments must be annotated with @JsonPro
...es-java8/tree/master/parameter-names
jackson-module-paranamer
This other one simply requires you to register the module or configure an annotation introspection (but not both as pointed out by the comments). It allows you to use annotation-free constructor arguments on versions of Java prior to 1....
Error “library not found for” after putting application in AdMob
...
good one, after pod install, one of the library was not listed there. I don't know why but adding that library path makes it work.
– Warewolf
Apr 2 '18 at 11:02
...
How do HTML parses work if they're not using regexp?
...ou reach back in your brain to a theory of computation course, if you took one, or a compilers course, or something similar, you may recall that there are different kinds of languages and computational models. I'm not qualified to go into all the details, but I can review a few of the major points ...
