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How to get the screen width and height in iOS?
...rfaceOrientation property. BTW, you asked about the screen size, so that's what I showed you, but for displaying your content you should probably use the window's bounds or the screen's applicationFrame, depending on what you're doing.
– Caleb
Apr 15 '11 at 15:...
Iterate through every file in one directory
... Dir::children) also include hidden files & directories. Often this is what you want, but if it isn't, you need to do something to skip over them.
Alternatively, you might want to look into Dir::glob which provides simple wildcard matching:
Dir.glob('/path/to/dir/*.rb') do |rb_filename|
# Do...
Read binary file as string in Ruby
...nly we had some language with synonyms... that still somehow knows exactly what we want in edge cases/ambiguous instances. Then I would just contents = (contents of file "path to file.txt" as string).
– masterxilo
Dec 4 '14 at 20:58
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How to identify CAAnimation within the animationDidStop delegate?
... That's a misuse of the forKey: parameter, and there's no need for it. What Batgar was doing is exactly right - key-value coding allows you to attach any arbitrary data to your animation, so you can easily identify it.
– matt
Jan 4 '12 at 3:41
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QuotaExceededError: Dom exception 22: An attempt was made to add something to storage that exceeded
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@DrewT, but what's the difference in this situation if you remove your test key? It doesn't matter where I will store my test key if I am going to delete it. Am I wrong? Why is the session storage better that the local one?
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What's the difference between a continuation and a callback?
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So essentially callcc logically converts the entire function body back to what we started from (and gives those anonymous functions the name cc). The pythagoras function using this implementation of callcc becomes then:
function pythagoras(x, y, cont) {
callcc(function(cc) {
square(x, ...
Dependency Injection vs Factory Pattern
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Nice answer. Many are confusing with that question: "What pattens should I choose?" In fact, design patterns are just a way to solve problem at proper situations. If you don't know what design pattern you should use, or "Where should I implement the pattern?" then you don't nee...
Why do you need explicitly have the “self” argument in a Python method?
...method' or '@staticmethod' in pure Python). There's no way without knowing what the decorator does whether to endow the method being defined with an implicit 'self' argument or not.
I reject hacks like special-casing '@classmethod' and '@staticmethod'.
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Where does R store packages?
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The install.packages command looks through the .libPaths variable. Here's what mine defaults to on OSX:
> .libPaths()
[1] "/Library/Frameworks/R.framework/Resources/library"
I don't install packages there by default, I prefer to have them installed in my home directory. In my .Rprofile, I hav...
How can I delete a file from a Git repository?
...em from git's tracking and version control...
Sample output below is from what just happened to me, where I unintentionally deleted the .003 file. Thankfully, I don't care what happened to the local copy to .003, but some of the other currently changed files were updates I just made to the website ...