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Best practice? - Array/Dictionary as a Core Data Entity Attribute [closed]
...m the data store (if it's an SQLite data store) just to read or modify a small part of the collection.
The alternative is to use Core Data to-many relationships to model the semantics of the array or dictionary collection. Arrays are easier, so lets start with that. Core Data to-many relationships ...
iOS Simulator failed to install the application
...s the same than remove the app from simulator, but in that case you remove all apps in all simulator.
– xarly
Sep 19 '13 at 9:30
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cv2.imshow command doesn't work properly in opencv-python
... only works with waitKey():
import cv2
img = cv2.imread('C:/Python27/03323_HD.jpg')
cv2.imshow('ImageWindow', img)
cv2.waitKey()
(The whole message-loop necessary for updating the window is hidden in there.)
share
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Adding 'serial' to existing column in Postgres
I have a small table (~30 rows) in my Postgres 9.0 database with an integer ID field (the primary key) which currently contains unique sequential integers starting at 1, but which was not created using the 'serial' keyword.
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How to display hidden characters by default (ZERO WIDTH SPACE ie. ​)
...ing problems with parsing config file of my app... I discovered it accidentally in vi.
2 Answers
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Why is a 3-way merge advantageous over a 2-way merge?
...s (without reference to the original), why can't it apply both changes serially in increasing order of files' timestamps? That is: It starts off with my friend's committed copy taking it to be the (new) original (with the line addition at the top) and then, on top of it, applies my local changes (li...
Providing a default value for an Optional in Swift?
...he idiom for dealing with optionals in Swift seems excessively verbose, if all you want to do is provide a default value in the case where it's nil:
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Disable Laravel's Eloquent timestamps
...this moment we don't want to add the updated_at / created_at fields to all of our tables as we have a logging class that does all this in more depth for us already.
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C# 通过代码安装、卸载、启动、停止服务 - .NET(C#) - 清泛IT论坛，有思想、有深度
...sp; IDictionary _SavedState = new Hashtable();
ServiceController service = new ServiceController(serviceName);
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How to write character & in android strings.xml
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For special character I normally use the Unicode definition, for the '&' for example: \u0026 if I am correct. Here is a nice reference page: http://jrgraphix.net/research/unicode_blocks.php?block=0
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