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Named routes _path vs _url
...st of the time.
_url helpers provide an absolute path, including protocol and server name. I've found that I mainly use these in emails when creating links to the app on the server. They should mainly be used when providing links for external use. (Think email links, RSS, and things like the copy a...
What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]
What is meant by String Pool ? And what is the difference between the following declarations:
5 Answers
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Is there a pattern for initializing objects created via a DI container
I am trying to get Unity to manage the creation of my objects and I want to have some initialization parameters that are not known until run-time:
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How do you hide the Address bar in Google Chrome for Chrome Apps?
... real estate for my Chrome app. The Address Bar is useless in a Chrome App and I was wondering if there was a way to disable it.
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How to convert a string of bytes into an int?
...afał: Not really, since Greg was using <, according to the docs L is standard size (4) "when the format string starts with one of '<', '>', '!' or '='." docs.python.org/library/struct.html#format-characters
– André Laszlo
Dec 24 '11 at 0:50
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ViewDidAppear is not called when opening app from background
I have a View Controller in which my value is 0 (label) and when I open that View Controller from another ViewController I have set viewDidAppear to set value 20 on label. It works fine but when I close my app and than again I open my app but the value doesn't change because viewDidLoad , vie...
Can Json.NET serialize / deserialize to / from a stream?
I have heard that Json.NET is faster than DataContractJsonSerializer, and wanted to give it a try...
5 Answers
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C++11 range based loop: get item by value or reference to const
... with copies.
Choose auto &x when you want to work with original items and may modify them.
Choose auto const &x when you want to work with original items and will not modify them.
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Passing a method as a parameter in Ruby
...ult argument in a block declaration like that. So you need to use a splat and setup the default in the proc code itself.
Or, depending on your scope of all this, it may be easier to pass in a method name instead.
def weightedknn(data, vec1, k = 5, weightf = :gaussian)
...
weight = self.send...
Capture keyboardinterrupt in Python without try-except
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Yes, you can install an interrupt handler using the module signal, and wait forever using a threading.Event:
import signal
import sys
import time
import threading
def signal_handler(signal, frame):
print('You pressed Ctrl+C!')
sys.exit(0)
signal.sig...