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What does the property “Nonatomic” mean?
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Take a look at the Apple Docs.
Basically, if you say nonatomic, and you generate the accessors using @synthesize, then if multiple threads try to change/read the property at once, badness can happen. You can get partially-written values or ove...
Force CloudFront distribution/file update
I'm using Amazon's CloudFront to serve static files of my web apps.
13 Answers
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What is the most efficient way to store tags in a database?
...le
Table: Items_Tags
Columns: Item_ID, Tag_ID
It might be that your web app is very very popular and need de-normalizing down the road, but it's pointless muddying the waters too early.
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Nested attributes unpermitted parameters
...e(:log_entry).permit!
Nested attributes are in the form of a hash. In my app, I have a Question.rb model accept nested attributes for an Answer.rb model (where the user creates answer choices for a question he creates). In the questions_controller, I do this
def question_params
params.re...
what is the difference between sendStickyBroadcast and sendBroadcast in Android
...m/d/msg/android-developers/8341SaXhvmY/…. It is an old post but probably applies still
– Mr_and_Mrs_D
Nov 25 '13 at 14:27
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Throw away local commits in Git
...works well when backtracking your changes would cost too much time, which happened to me after a couple of rebases.
– aross
May 15 '14 at 10:49
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How can I enable zoom in on UIWebView which inside the UIScrollView?
...l working fine Paging, ZoomIn/Out, etc... But I have one issue in that. My app working in both orientation (Portrait & Landscape). Now, in portrait, I have to swipe the page 2-3 times then I am able to go next page. But in landscape, it's working fine. I have take webview inside scrollview and s...
How to see top processes sorted by actual memory usage?
... reports how much memory is resident, or currently in ram (as opposed to swapped to disk or never actually allocated in the first place, despite being requested).
But, since RES will count e.g. /lib/libc.so.6 memory once for nearly every process, it isn't exactly an awesome measure of how much memo...
Long Press in JavaScript?
...lding you finger dead steady and not moving 1px is quite hard! You need to apply a threshold (if mouse hasn't moved 10px) etc. Gets complicated quite quickly!
– Ian
Feb 18 '15 at 12:44
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What is the difference between a port and a socket?
...ly exposes a reference to a socket object. To the coder this socket object appears to represent the connection because the connection is created and manipulated using methods of the socket object.
In C#, to establish a TCP connection (to an existing listener) first you create a TcpClient. If you d...