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Convert a Unix timestamp to time in JavaScript
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edited Jan 11 at 13:23
leonheess
3,42111 gold badge3030 silver badges5353 bronze badges
a...
How to prevent http file caching in Apache httpd (MAMP)
...able headers and expires modules on my Apache installation by typing "sudo a2enmod headers" and "sudo a2enmod expires", and then sudo service apache2 restart. The LoadModule and IfModule commands/tags weren't necessary -- just omit the bracketed IfModule tag parts above but still enter the Header se...
“This project is incompatible with the current version of Visual Studio”
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jstitesjstites
13911 silver badge66 bronze badges
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How do I open an old MVC project in Visual Studio 2012 or Visual Studio 2013?
...ectTypeGuids>
{F85E285D-A4E0-4152-9332-AB1D724D3325};{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}
</ProjectTypeGuids>
Remove the appropriate Project Guid from the list:
ASP.NET MVC 1: {603c0e0b-db56-11dc-be95-000d561079b0}
ASP.NET MVC 2: {F85E285D-A4...
When can I use a forward declaration?
.../ Compiler error.
template <typename T> struct X {};
Foo<int> a2; // OK since X is now defined.
Use it to declare a member of another class template:
template <typename T>
class Foo {
X<T> m; // OK as long as X is defined before
// Foo is instantiated.
};
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Generate a random alphanumeric string in Cocoa
...turns a unichar
– user102008
Mar 4 '11 at 21:01
8
Using arc4random would generate a biased result...
Check if a number has a decimal place/is a whole number
...ething new :)
– Abe Petrillo
Sep 1 '11 at 16:53
7
@Abe: true enough, though I think that's unlike...
How to go back to previous page if back button is pressed in WebView?
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@dc7a9163d9 an activity might want to have several views or objects that depend on keyDown. this answer abstracts out the need for the activity to keydown dependency via webview (which is better design). also, newer apps almost ...
How to add property to a class dynamically?
...urpose. if the dict has multilevel hierarchy, like d = {'a1': {'b': 'c'}, 'a2': ...}, then while you can do d.a1 or d.a2, you can't do d.a1.b
– Shreyas
Jan 11 '17 at 2:35
1
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Applicatives compose, monads don't
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If you have applicatives A1 and A2, then the type data A3 a = A3 (A1 (A2 a)) is also applicative (you can write such an instance in a generic way).
On the other hand, if you have monads M1 and M2 then the type data M3 a = M3 (M1 (M2 a)) is not necessarily ...