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What are best practices that you use when writing Objective-C and Cocoa? [closed]
... a variable can be accessed by other classes shouldn't there be a property for it? I always disliked the "_" prefix for making code uglier, and now I can leave it out.
2) Speaking of private things, I prefer to place private method definitions within the .m file in a class extension like so:
#imp...
bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...ore a start timestamp to each. How? We could construct a unique identifier for each read, and use that as the key. But because kernel threads can only be executing one syscall at a time, we can use the thread ID as the unique identifier, as each thread cannot be executing more than one.
nsecs: 自...
Rails update_attributes without save?
...
I believe what you are looking for is assign_attributes.
It's basically the same as update_attributes but it doesn't save the record:
class User < ActiveRecord::Base
attr_accessible :name
attr_accessible :name, :is_admin, :as => :admin
end
use...
What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]
...included) don't like that very much.
Bazaar is reasonably fast (very fast for trees with shallow history, but presently scales poorly with history length), and is easy-to-learn to those familiar with the command-line interfaces of traditional SCMs (CVS, SVN, etc). Win32 is considered a first-class ...
Make Iframe to fit 100% of container's remaining height
...e last one in this answer - flexbox. Everything supports it nicely and has for years. Go for that and don't look back. The rest of this answer is left for historical reasons.
The trick is to understand what the 100% is taken of. Reading CSS specs can help you there.
To make a long story short - ...
GDB corrupted stack frame - How to debug?
...ollowing stack trace. Is it possible to make out anything useful from this for debugging?
5 Answers
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What is the difference between localStorage, sessionStorage, session and cookies?
...on of persistence. sessionStorage (as the name suggests) is only available for the duration of the browser session (and is deleted when the tab or window is closed) - it does, however, survive page reloads (source DOM Storage guide - Mozilla Developer Network).
Clearly, if the data you are storing ...
google oauth2 redirect_uri with several parameters
...ral parameters to your redirect uri, have them stored in state
parameter before calling Oauth url, the url after authorization will send the same parameters to your redirect uri as
state=THE_STATE_PARAMETERS
So for your case,do this:
/1. create a json string of your parameters ->
{ "a" : "b"...
Valid to use (anchor tag) without href attribute?
... anchor to or from some content. Originally the HTML specification allowed for named anchors (<a name="foo">) and linked anchors (<a href="#foo">).
The named anchor format is less commonly used, as the fragment identifier is now used to specify an [id] attribute (although for backwards ...
What are the differences between poll and select?
...
The basic difference is that select()'s fd_set is a bit mask and
therefore has some fixed size. It would be possible for the kernel to
not limit this size when the kernel is compiled, allowing the
application to define FD_SETSIZE to whatever it wants (as the comments
in the system header...