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Why do we need virtual functions in C++?
...eneric food, cats eat rats, all without virtual.
Let's change it a little now so that eat() is called via an intermediate function (a trivial function just for this example):
// This can go at the top of the main.cpp file
void func(Animal *xyz) { xyz->eat(); }
Now our main function is:
Anima...
What's the difference between URI.escape and CGI.escape?
...es how data should be encoded/decode between web server and application.
Now, let's say that you need to escape a URI in your app. It is a more specific use case.
For that, the Ruby community used URI.escape for years. The problem with URI.escape was that it could not handle the RFC-3896 spec.
UR...
Insert new column into table in sqlite?
I have a table with columns name , qty , rate . Now I need to add a new column COLNew in between the name and qty columns. How do I add a new column in between two columns?
...
Most efficient way to concatenate strings in JavaScript?
...
It is different from version to version. I guess, right now Chrome's VM might contain some pre-optimization for this case. I tested again on Chrome v53 and concatenation is now the fastest solution :D Same hardware but different Chrome version gives totally different results.
...
What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?
...had back-tracked on this intent, and it is perhaps too late to change this now. I tried to search around the web to find out what happened with these plans, but I couldn’t find any answers. I still wanted to get to the bottom of it.
So I emailed Jeff Richter and asked him directly — I figured i...
WebView and HTML5
... wb = (WebView) a.findViewById(R.id.webview);
a.initWebView();
}
But now I should say there are still an important issue. I can play it only once. The second time I click on the video dispatcher (either the poster or some play button), it does nothing.
I would also like the video to play insi...
JavaScript sleep/wait before continuing [duplicate]
...ew Date().getTime() - start) > milliseconds){
break;
}
}
}
now, if you want to sleep for 1 second, just use:
sleep(1000);
example: http://jsfiddle.net/HrJku/1/
please note that this code will keep your script busy for n milliseconds. This will not only stop execution of Javascript o...
What is Java Servlet?
... (e.g. parsing an HTTP request, connection handling etc). One of the best-known open source servlet containers is Tomcat.
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include antiforgerytoken in ajax post ASP.NET MVC
... calls and the Html.AntiForgeryToken() . Using that solution, the token is now being passed:
11 Answers
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Making macOS Installer Packages which are Developer ID ready
...blems and Solutions
Stupid tricks with pkgbuild
persisting obsolescence
Known Issues and Workarounds
Destination Select Pane
The user is presented with the destination select option with only a single choice - "Install for all users of this computer". The option appears visually selected, but th...