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UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
...pushed, viewWillAppear is called. If you push another subview from there, and the user returns, viewWillAppear is called again.
– Kendall Helmstetter Gelner
Oct 16 '09 at 19:52
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Understanding __get__ and __set__ and Python descriptors
I am trying to understand what Python's descriptors are and what they are useful for. I understand how they work, but here are my doubts. Consider the following code:
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Different results with Java's digest versus external utilities
... I am using Windows 7 Professional with SP1 . I have tried Java 6.0.29 and Java 7.0.03 . Can someone tell me why I am getting different hash values from Java versus (many!) external utilities and/or websites? Everything external matches with each other, only Java is returning different result...
How to implement classic sorting algorithms in modern C++?
The std::sort algorithm (and its cousins std::partial_sort and std::nth_element ) from the C++ Standard Library is in most implementations a complicated and hybrid amalgamation of more elementary sorting algorithms , such as selection sort, insertion sort, quick sort, merge sort, or heap sort....
Type of conditional expression cannot be determined because there is no implicit conversion between
... conditional expression b ? x : y, there are three possibilities, either x and y both have a type and certain good conditions are met, only one of x and y has a type and certain good conditions are met, or a compile-time error occurs. Here, "certain good conditions" means certain conversions are pos...
Deleting rows with MySQL LEFT JOIN
... one for job deadlines, one for describe a job. Each job can take a status and some statuses means the jobs' deadlines must be deleted from the other table.
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NameError: global name 'unicode' is not defined - in Python 3
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If you need to have the script keep working on python2 and 3 as I did, this might help someone
import sys
if sys.version_info[0] >= 3:
unicode = str
and can then just do for example
foo = unicode.lower(foo)
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Using varchar(MAX) vs TEXT on SQL Server
... is the recommended replacement for the TEXT datatype in SQL Server 2005 and Next SQL SERVER versions.
5 Answers
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How do I tell git to always select my local version for conflicted merges on a specific file?
Say I'm collaborating with someone via a git repository, and there is a particular file that I never want to accept any external changes to.
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What is an Intent in Android?
... happen. Depending on the intent, apps or the OS might be listening for it and will react accordingly. Think of it as a blast email to a bunch of friends, in which you tell your friend John to do something, or to friends who can do X ("intent filters"), to do X. The other folks will ignore the email...