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Get the value of an instance variable given its name
...e public. What you should do is:
class Computer
attr_reader :cpus
end
Now you can do Computer.new(4).cpus.
Note that you can reopen any existing class and make a private ivar into a reader. Since an accessor is just a method, you can do Computer.new(4).send(var_that_evaluates_to_cpus)
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Git repository broken after computer died
My computer went dead and now one of my git repositories is broken. When I try to checkout master it tells me:
15 Answers
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Regex Email validation
...s that are being issued, as you can have TLD's with more than 3 characters now.
– AaronLS
Jul 22 '13 at 19:04
This reg...
Writing outputs to log file and console
...It worked just as you suggested. But I didn't understand tee /dev/fd/3. I know that tee writes message to log file and console, but I didn't exactly understand the /dev/fd/3 used after tee
– abinash shrestha
Aug 28 '13 at 5:33
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AES vs Blowfish for file encryption
...ufficient -- so they doubled that to 32 rounds. The best attack currently known is effective against only 11 rounds. If the original question hadn't specifically restricted the choices to AES and Blowfish, and simply asked for the most secure, reasonably well-known cipher, I'd probably have said Ser...
How do you implement a good profanity filter?
...ite Bunny" story from the proverbial horse's mouth, it's a podcast episode now: socialmediaclarity.tumblr.com/post/70499341079/…
– F. Randall Farmer
Dec 20 '13 at 8:39
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What is the garbage collector in Java?
...ated in the previous iteration is not being used anymore -- that object is now considered "garbage".
Eventually, we'll start getting a lot of garbage, and memory will be used for objects which aren't being used anymore. If this keeps going on, eventually the Java Virtual Machine will run out of spa...
IE9 border-radius and background gradient bleeding
...a gradient just like you drew. I used conditional comments for gte IE9 for now and then applied box-shadow: inset 0 -8px 10px rgba(0,0,0,0.15), 0 1px 0 rgba(255,255,255, 0.3), inset 0 1px 0 rgba(255,255,255, 0.3);
– Volomike
May 22 '12 at 19:40
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How do you sort a list in Jinja2?
...t I wanted. By the way, does it work with both types of attributes...you know getattr and getitem ? (because I can't remember whether "movies" were objects or dictionaries)
– Nick Perkins
Mar 31 '11 at 23:28
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How to take emulator screenshots using Eclipse?
...ou are debugging in the Android Virtual Device Manager. I think this is a known bug.
– Dennis
May 27 '14 at 15:44
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