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Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl
...e like this:
List list = new ArrayList();
the rest of your code only knows that data is of type List, which is preferable because it allows you to switch between different implementations of the List interface with ease.
For instance, say you were writing a fairly large 3rd party library, and ...
Can I use multiple versions of jQuery on the same page?
... -- $ and jQuery belong to versionX.
You call your "jquery.versionY.js" -- now $ and jQuery belong to versionY, plus _$ and _jQuery belong to versionX.
my_jQuery = jQuery.noConflict(true); -- now $ and jQuery belong to versionX, _$ and _jQuery are probably null, and my_jQuery is versionY.
...
Unable to launch the IIS Express Web server, Failed to register URL, Access is denied
... Also worked for me on ASP.NET Core 1.0 RC1, although it is now in Debug tab and I had to toggle SSL Enable off and on again to generate a new port then copy that to Launch URL box. stackoverflow.com/a/35706891/134761
– angularsen
Feb 29 '16 at 1...
Problems with contenttypes when loading a fixture in Django
... corrupt data due to objects referring to wrong objects and you don't yet know about it
– Ski
Feb 10 '15 at 18:30
...
How do I finish the merge after resolving my merge conflicts?
... of completing a merge after resolving conflicts is to use 'git commit'.
Now with commands like 'git rebase' and 'git cherry-pick' having a '--continue' option adding such an option to 'git merge' presents a consistent UI.
...
Should I compile with /MD or /MT?
...s with older versions. The newer versions would be gone. This is commonly known as "dll hell", see en.wikipedia.org/wiki/DLL_Hell
– Adrian Grigore
Sep 18 '12 at 19:24
...
How can I wait for set of asynchronous callback functions?
...
if (ajaxCallsRemaining <= 0) {
// all data is here now
// look through the returnedData and do whatever processing
// you want on it right here
}
});
}
Note: error handling is important here (not shown because it's specific to how you're...
Programmatically access currency exchange rates [closed]
...change Rates project data has been moved away from GitHub.
It is available now at: http://openexchangerates.org/
Data in JSON format is available at: http://openexchangerates.org/latest.json
No access fees, no rate limits, No ugly XML - just free, hourly updated exchange rates in JSON format.
This ...
How do I convert a dictionary to a JSON String in C#?
...rt my Dictionary<int,List<int>> to JSON string. Does anyone know how to achieve this in C#?
13 Answers
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Java: Static Class?
...stance. When I hear "i have a utility class", I see Math.Avg(), where you now need to add supported for a weighted average. I see a Url generator, param in, url out that needs to be refactored to support href, or url only, etc etc. For these reasons, having the OO based utility class can pay back...