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UICollectionView reloadData not functioning properly in iOS 7
I've been updating my apps to run on iOS 7 which is going smoothly for the most part. I have noticed in more than one app that the reloadData method of a UICollectionViewController isn't acting quite how it used to.
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How can I detect if a browser is blocking a popup?
...asionally, I've come across a webpage that tries to pop open a new window (for user input, or something important), but the popup blocker prevents this from happening.
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putting datepicker() on dynamically created elements - JQuery/JQueryUI
...); syntax means:
Add a listener to ...selector.. (the body in our example) for the event ..event.. ('focus' in our example). For all the descendants of the matching nodes that matches the selector ...another-selector... (.datepicker_recurring_start in our example) , apply the event handler ...callba...
Get the current git hash in a Python script
...ded the number of additional commits ("14") and an abbreviated object name for the commit itself ("2414721") at the end.
From within Python, you can do something like the following:
import subprocess
label = subprocess.check_output(["git", "describe"]).strip()
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Generate full SQL script from EF 5 Code First Migrations
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The API appears to have changed (or at least, it doesn't work for me).
Running the following in the Package Manager Console works as expected:
Update-Database -Script -SourceMigration:0
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Difference between fmt.Println() and println() in Go
... in the standard library, which will persist. See the spec on that topic.
For language developers it is handy to have a println without dependencies, but the way to go is to use the fmt package or something similar (log for example).
As you can see in the implementation the print(ln) functions are...
Uninstall / remove a Homebrew package including all its dependencies
I have a Homebrew formula that I wish to uninstall/remove along with all its dependencies, skipping packages whom other packages depend upon (a.k.a. Cascading package removal in Package manager parlance).
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How to implement a queue using two stacks?
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It is true that the worst-case time for a single pop operation is O(n) (where n is the current size of the queue). However, the worst-case time for a sequence of n queue operations is also O(n), giving us the amortized constant time. I wouldn't implement a qu...
Why is there “data” and “newtype” in Haskell? [duplicate]
...n handle newtype s more efficiently. And the handling of pattern matching for undefined values is slightly different.
4 A...
select、poll、epoll之间的区别总结[整理] - C/C++ - 清泛网 - 专注C/C++及内核技术
...1、select实现
select的调用过程如下所示：
（1）使用copy_from_user从用户空间拷贝fd_set到内核空间
（2）注册回调函数__pollwait
（3）遍历所有fd，调用其对应的poll方法（对于socket，这个poll方法是sock_poll，sock_poll根据情况会调用到...