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Reading a string with scanf
...nd &string[0] -- pointers to objects of different types and sizes that start at the same place -- are represented the same way.
I don't believe I've ever encountered a system on which that doesn't work, and in practice you're probably safe. None the less, it's wrong, and it could fail on some p...
How can I replace a newline (\n) using sed?
...oking for. Since GNU sed
version 3.02.80 now supports this syntax:
sed '/start/,+4d' # to delete "start" plus the next 4 lines,
in addition to the traditional '/from here/,/to there/{...}' range
addresses, it may be possible to avoid the use of \n entirely.
...
What is the difference between a framework and a library?
...
That's an interesting definition. I have recently started using d3.js, and observed that it is generally considered as a framework. But whatever d3 code I wrote is within a usual javascript code, so I am unable to extend this definition to d3.
– Dileep ...
What's the best way to iterate over two or more containers simultaneously
... with another step; or through one container until it gets to the end then start inserting while you go through to the end of the other container; or one step of the first container for every time you completely go through the other container then start over; or some other pattern; or more than two ...
Parse large JSON file in Nodejs
... == 0) { // if there's more than one newline in a row, the buffer will now start with a newline
buf = buf.slice(1); // discard it
continue; // so that the next iteration will start with data
}
processLine(buf.slice(0,pos)); // hand off the line
buf = b...
How to set ViewBag properties for all Views without using a base class for Controllers?
...nResultExecuting(context);
}
}
Then you need to register this in your startup.cs.
.Net Core 3.1
public void ConfigureServices(IServiceCollection services)
{
services.AddControllersWithViews(options => { options.Filters.Add(new Components.ViewBagActionFilter()); });
}
.Net Core 2.1
publi...
Can I redirect the stdout in python into some sort of string buffer?
...
Starting with Python 2.6 you can use anything implementing the TextIOBase API from the io module as a replacement.
This solution also enables you to use sys.stdout.buffer.write() in Python 3 to write (already) encoded byte st...
Android: how to make an activity return results to the activity which calls it?
...
In order to start an activity which should return result to the calling activity, you should do something like below. You should pass the requestcode as shown below in order to identify that you got the result from the activity you start...
What are the differences between various threading synchronization options in C#?
...tionSource for async operation. Basically, stop thinking about threads and start thinking about tasks (units of work). Threads are an implementation detail and not relevant. By returning a TCS, you can return results, errors or handle cancellation and it's easily composable with other async operatio...
Capturing Groups From a Grep RegEx
... regex like this:
^[0-9]+_([a-z]+)_[0-9a-z]*
which says the string must start with one or more digits. The carat represents the beginning of the string. If you add a dollar sign at the end of the regex, like this:
^[0-9]+_([a-z]+)_[0-9a-z]*$
then the third example will also be eliminated since...