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T-SQL CASE Clause: How to specify WHEN NULL
I wrote a T-SQL Statement similar like this (the original one looks different but I want to give an easy example here):
15 ...
What does __FILE__ mean in Ruby?
...preted as "foo.rb".
Edit: Ruby 1.9.2 and 1.9.3 appear to behave a little differently from what Luke Bayes said in his comment. With these files:
# test.rb
puts __FILE__
require './dir2/test.rb'
# dir2/test.rb
puts __FILE__
Running ruby test.rb will output
test.rb
/full/path/to/dir2/test.rb
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how do I use the grep --include option for multiple file types?
...e case at hand grep ends up seeing multiple --include=... options, just as if you had passed them individually.
The results of a brace expansion are subject to globbing (filename expansion), which has pitfalls:
Each resulting argument could further be expanded to matching filenames if it happens ...
What is __future__ in Python used for and how/when to use it, and how it works
... the __future__ stuff, both print statements would print 1.
The internal difference is that without that import, / is mapped to the __div__() method, while with it, __truediv__() is used. (In any case, // calls __floordiv__().)
Apropos print: print becomes a function in 3.x, losing its special pro...
How to show and update echo on same line
...rrectly the man echo page for this.
echo had 2 options that could do this if I added a 3rd escape character.
The 2 options are -n and -e.
-n will not output the trailing newline. So that saves me from going to a new line each time I echo something.
-e will allow me to interpret backslash escape ...
What is the difference between synchronous and asynchronous programming (in node.js)
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The difference is that in the first example, the program will block in the first line. The next line (console.log) will have to wait.
In the second example, the console.log will be executed WHILE the query is being processed. Tha...
How do I specify a single test in a file with nosetests?
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You must specify it like so: nosetests <file>:<Test_Case>.<test_method>, or
nosetests test_web.py:TestWeb.test_checkout
See the docs
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How do I typedef a function pointer with the C++11 using syntax?
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It has a similar syntax, except you remove the identifier from the pointer:
using FunctionPtr = void (*)();
Here is an Example
If you want to "take away the uglyness", try what Xeo suggested:
#include <type_traits>
using FunctionPtr = std::add_pointer<void()>...
Algorithm to randomly generate an aesthetically-pleasing color palette [closed]
...extInt(256);
int blue = random.nextInt(256);
// mix the color
if (mix != null) {
red = (red + mix.getRed()) / 2;
green = (green + mix.getGreen()) / 2;
blue = (blue + mix.getBlue()) / 2;
}
Color color = new Color(red, green, blue);
return color;
}
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How to implement a confirmation (yes/no) DialogPreference?
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Use Intent Preference if you are using preference xml screen or you if you are using you custom screen then the code would be like below
intentClearCookies = getPreferenceManager().createPreferenceScreen(this);
Intent clearcookies = new Inten...