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Difference between Dictionary and Hashtable [duplicate]
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Simply, Dictionary<TKey,TValue> is a generic type, allowing:
static typing (and compile-time verification)
use without boxing
If you are .NET 2.0 or above, you should prefer Dictionary<TKey,TValue> (and the other generic collections...
How to create abstract properties in python abstract classes
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JamesJames
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Clearing purchases from iOS in-app purchase sandbox for a test user
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IMO there are 3 things you can do to make testing non-consumables bearable:
You can have many test accounts associated to one email. Gmail for example lets you add a "plus" string to the email to create aliases for an address: so tester+01@gmail.com and tester+0...
How to make a class JSON serializable
How to make a Python class serializable?
33 Answers
33
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if A vs if A is not None:
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Greg HewgillGreg Hewgill
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How do I profile memory usage in Python?
...nswered already here: Python memory profiler
Basically you do something like that (cited from Guppy-PE):
>>> from guppy import hpy; h=hpy()
>>> h.heap()
Partition of a set of 48477 objects. Total size = 3265516 bytes.
Index Count % Size % Cumulative % Kind (class / dic...
Python Image Library fails with message “decoder JPEG not available” - PIL
...llowing these instructions to switch, or if you have a good reason for sticking with PIL then replace "pillow" with "PIL" in the below).
On Ubuntu:
# install libjpeg-dev with apt
sudo apt-get install libjpeg-dev
# if you're on Ubuntu 14.04, also install this
sudo apt-get install libjpeg8-dev
# re...
When should I use a struct rather than a class in C#?
... be boxed frequently.
Microsoft consistently violates those rules
Okay, #2 and #3 anyway. Our beloved dictionary has 2 internal structs:
[StructLayout(LayoutKind.Sequential)] // default for structs
private struct Entry //<Tkey, TValue>
{
// View code at *Reference Source
}
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Alternative to google finance api [closed]
I wanted to use Google Finance API to get stock data about the company but this API is deprecated since 2011/26/05.
5 Answe...
“Ago” date/time functions in Ruby/Rails
I was wondering if there's a way in Rails to calculate time stamp like - half a minute ago, 2 minute ago, 1 day ago etc. Something like twitter real time date stamp.
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