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What's the difference between utf8_general_ci and utf8_unicode_ci?
...justify the performance cost. Today, that performance cost has all but disappeared, and developers are treating internationalization more seriously.
There's an argument to be made that if speed is more important to you than accuracy, you may as well not do any sorting at all. It's trivial to make ...
Where are my postgres *.conf files?
...t PostgreSQL. See pg_clt -D, check postgresql.org/docs/current/interactive/app-pg-ctl.html
– Frank Heikens
Sep 1 '10 at 9:51
3
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How do I list all files of a directory?
...:
import glob
txtfiles = []
for file in glob.glob("*.txt"):
txtfiles.append(file)
glob with list comprehension
import glob
mylist = [f for f in glob.glob("*.txt")]
glob with a function
The function returns a list of the given extension (.txt, .docx ecc.) in the argument
import ...
Is there a list of screen resolutions for all Android based phones and tablets? [closed]
...ns are :
1280*800
1280*768
1024*600
1024*800
1024*768
800*400
800*480
Happy designing .. ! :)
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How do I uniquely identify computers visiting my web site?
...rowser fingerprinting poses in practice,
and what countermeasures may be appropriate to prevent it. There is a
tradeoff between protection against fingerprintability and certain kinds of
debuggability, which in current browsers is weighted heavily against privacy. Paradoxically, anti-fingerpri...
Declaration/definition of variables locations in ObjectiveC?
Ever since starting to work on iOS apps and objective C I've been really puzzled by the different locations where one could be declaring and defining variables. On one hand we have the traditional C approach, on the other we have the new ObjectiveC directives that add OO on top of that. Could you fo...
Why are Subjects not recommended in .NET Reactive Extensions?
... are any message to process
For option 1, easy, we just wrap it with the appropriate FromEvent method and we are done. To the Pub!
For option 2, we now need to consider how we poll this and how to do this effciently. Also when we get the value, how do we publish it?
I would imagine that you woul...
What do 'statically linked' and 'dynamically linked' mean?
...es responsible for the dreaded "DLL hell" that some people mention in that applications can be broken if you replace a dynamically linked library with one that's not compatible (developers who do this should expect to be hunted down and punished severely, by the way).
As an example, let's look at...
What does “Could not find or load main class” mean?
...<arg> is an arbitrary command line argument that gets passed to your application.
1 - There are some other syntaxes which are described near the end of this answer.
The fully qualified name (FQN) for the class is conventionally written as you would in Java source code; e.g.
packagen...
Reduce, fold or scan (Left/Right)?
...
In general, all 6 fold functions apply a binary operator to each element of a collection. The result of each step is passed on to the next step (as input to one of the binary operator's two arguments). This way we can cumulate a result.
reduceLeft and reduc...