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What are the differences between Deferred, Promise and Future in JavaScript?
...e. See suggested reading from @jfriend00:
Rather than directly passing callbacks to functions, something which
can lead to tightly coupled interfaces, using promises allows one to
separate concerns for code that is synchronous or asynchronous.
Personally, I've found deferred especially use...
Show which git tag you are on?
...an error, and people need to handle the result accordingly. But I wouldn't call it a bug. For my case, "empty if no tags" is valid. Other cases, someone can save it to a variable then check if it is empty (link to bash instructions)
– driftcatcher
May 21 '18 at...
WPF vs Silverlight [duplicate]
...rowser-based technology that has access to a subset of the .Net Framework (called the CoreCLR). So, you'll notice differences using seemingly every day methods and objects within the framework. For instance, the Split() method on the String class has 3 overrides in Silverlight, but 6 in the .Net F...
How to convert std::string to LPCSTR?
...
Call c_str() to get a const char * (LPCSTR) from a std::string.
It's all in the name:
LPSTR - (long) pointer to string - char *
LPCSTR - (long) pointer to constant string - const char *
LPWSTR - (long) pointer to Unicode ...
Why can't I declare static methods in an interface?
...n example. Suppose we had a Math class with a static method add. You would call this method like so:
Math.add(2, 3);
If Math were an interface instead of a class, it could not have any defined functions. As such, saying something like Math.add(2, 3) makes no sense.
...
What is the difference between Integer and int in Java?
...just as with any other reference (object) type. Integer.parseInt("1") is a call to the static method parseInt from class Integer (note that this method actually returns an int and not an Integer).
To be more specific, Integer is a class with a single field of type int. This class is used where you ...
How do I make a reference to a figure in markdown using pandoc?
...ately this is not a very flexible way of doing it. One cannot specify the width or height of the image this way. Is it possible to include PDFs that way? If not that would also be a downside, since it is preferable in the PDF as output case.
– Zelphir Kaltstahl
...
Good examples using java.util.logging [closed]
...er, and add this to your logger using the addHandler method. Make sure you call setLevel on both the logger and the handler.
– Craig Brown
Nov 3 '16 at 14:45
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How to post JSON to a server using C#?
...ge the using statement's default functionality in order to omit explicitly calling Flush and Close.
var httpWebRequest = (HttpWebRequest)WebRequest.Create("http://url");
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";
using (var streamWriter = new StreamWriter(http...
Run R script from command line
I have a file, called a.r , it has a chmod of 755,
7 Answers
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