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How did this person code “Hello World” with Microsoft Paint?
...olors (i.e. none of them are "mandated" by the file format2, they all come from the color of each pixel), and there's a perfect 1:1 correspondence between pixel colors and bytes written in the file; thus, using perfectly chosen colors you can actually write anything you want in the file (with the ex...
How can I get the current page name in WordPress?
...atic page is set as the front page, $pagename will not be set. Retrieve it from the queried object
$post = $wp_query->get_queried_object();
$pagename = $post->post_name;
}
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UITableViewCell show white background and cannot be modified on iOS7
I've implemented a custom table view cell class that inherit from UITableViewCell . The tableview contains a background image, so I want cell's background to be transparent. It looks great before iOS7.
...
What does “rc” mean in dot files
...e Candidate.
Edit: No, I take it back officially... "run commands"
[Unix: from runcom files on the CTSS system 1962-63, via the startup script /etc/rc]
Script file containing startup instructions for an application program (or an entire operating system), usually a text file containing commands of ...
How to test a confirm dialog with Cucumber?
... doesn't seem to work anymore in Firefox 4... @derek-ekins solution below, from what Google tells me, seems to be more forward-compatible, though I can't confirm just yet (I'm stuck on Capybara 0.3.9).
– carpeliam
Apr 6 '11 at 17:34
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How do I calculate square root in Python?
... If you want your Python 2.x code to behave like 3.x w.r.t. division write from __future__ import division - then 1/2 will evaluate to 0.5 and for backwards compatibility, 1//2 will evaluate to 0.
And for the record, the preferred way to calculate a square root is this:
import math
math.sqrt(x)
...
Is there a way to override class variables in Java?
...ava you hide them. Overriding is for instance methods. Hiding is different from overriding.
In the example you've given, by declaring the class variable with the name 'me' in class Son you hide the class variable it would have inherited from its superclass Dad with the same name 'me'. Hiding a var...
How to hash a password
...
UPDATE: THIS ANSWER IS SERIOUSLY OUTDATED. Please use the recommendations from the https://stackoverflow.com/a/10402129/251311 instead.
You can either use
var md5 = new MD5CryptoServiceProvider();
var md5data = md5.ComputeHash(data);
or
var sha1 = new SHA1CryptoServiceProvider();
var sha1data ...
Python None comparison: should I use “is” or ==?
...objects)
In other words, == is a check for equivalence (which is defined from object to object) whereas is checks for object identity:
lst = [1,2,3]
lst == lst[:] # This is True since the lists are "equivalent"
lst is lst[:] # This is False since they're actually different objects
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How to find nth occurrence of character in a string?
...
Apart from the "off-by-one" error, there is another great positive in @Jon Skeet's solution - With a minor tweak (reversing the loop), you can have the "nth occurrence from the last" as well.
– Karan Chadha
...