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Converting camel case to underscore case in ruby
...ef underscore
self.gsub(/::/, '/').
gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
gsub(/([a-z\d])([A-Z])/,'\1_\2').
tr("-", "_").
downcase
end
end
Then you can do fun stuff:
"CamelCase".underscore
=> "camel_case"
...
How Do I Take a Screen Shot of a UIView?
...ntext is more a method you would override...
Note that it may not work in all views, specifically a year or so ago when I tried to use this with the live camera view it did not work.
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improv...
Is there a zip-like function that pads to longest length in Python?
...
In Python 3 you can use itertools.zip_longest
>>> list(itertools.zip_longest(a, b, c))
[('a1', 'b1', 'c1'), (None, 'b2', 'c2'), (None, 'b3', None)]
You can pad with a different value than None by using the fillvalue parameter:
>>> list(iter...
UICollectionView reloadData not functioning properly in iOS 7
...nd probing. I feel this is an iOS 7 bug. Forcing the main thread will run all UIKit related messages. I seem to run into this when popping to the view from another view controller. I refresh the data on viewWillAppear. I could see the data and collection view reload call, but the UI was not updat...
Getting “bytes.Buffer does not implement io.Writer” error message
...main
import "bytes"
import "io"
func main() {
var b bytes.Buffer
_ = io.Writer(&b)
}
You don't need use "bufio.NewWriter(&b)" to create an io.Writer. &b is an io.Writer itself.
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Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
I'm working on a balloon project with a Raspberry Pi. When we potentially recover the Raspberry Pi, it will most likely be in a rural location and I'd like to turn off the Pi at that point safely.
...
How to create own dynamic type or dynamic object in C#?
... new List<string>();
// my 'columns'
fields.Add("this_thing");
fields.Add("that_thing");
fields.Add("the_other");
dynamic exo = new System.Dynamic.ExpandoObject();
foreach (string field in fields)
{
((IDictionary<String, ...
PHP Function with Optional Parameters
...wered Oct 20 '10 at 14:32
Matt BallMatt Ball
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Python - 'ascii' codec can't decode byte
I'm really confused. I tried to encode but the error said can't decode... .
7 Answers
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What's a good rate limiting algorithm?
...sages
per = 8.0; // unit: seconds
allowance = rate; // unit: messages
last_check = now(); // floating-point, e.g. usec accuracy. Unit: seconds
when (message_received):
current = now();
time_passed = current - last_check;
last_check = current;
allowance += time_passed * (rate / per);
if (...