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What does the @ symbol represent in objective-c?
...rations, copy, retain, assign, readonly, readwrite, nonatomic, getter, and setter; those are only valid within the attribute section of a @property declaration.
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Django FileField with upload_to determined at runtime
I'm trying to set up my uploads so that if user joe uploads a file it goes to MEDIA_ROOT/joe as opposed to having everyone's files go to MEDIA_ROOT. The problem is I don't know how to define this in the model. Here is how it currently looks:
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How to check if hex color is “too black”?
...of a color chosen by a color picker to see if it's "too black", and if so, set it to white. I thought I could use the first characters of the hex value to pull this off. It's working, but it's switching some legitimately "light" colors too.
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C++ map access discards qualifiers (const)
...because the current overload was built with the goal of both returning and setting key values.
Instead, you can use:
VALUE = map.find(KEY)->second;
or, in C++11, you can use the at() operator:
VALUE = map.at(KEY);
s...
What is the difference between git clone and checkout?
...emote. git clone will also works with local repos.
– SET
Nov 28 '12 at 1:29
1
Thanks for the link...
When should I use h:outputLink instead of h:commandLink?
...n question. You can make use of @ManagedProperty or <f:viewParam> to set GET parameters as bean properties.
See also:
ViewParam vs @ManagedProperty(value = "#{param.id}")
What can <f:metadata>, <f:viewParam> and <f:viewAction> be used for?
Bookmarkability via View Parameters...
Test if lists share any items in python
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Short answer: use not set(a).isdisjoint(b), it's generally the fastest.
There are four common ways to test if two lists a and b share any items. The first option is to convert both to sets and check their intersection, as such:
bool(set(a) &...
jQuery map vs. each
...terates over an array, calling the supplied function once per element, and setting this to the active element. This:
function countdown() {
alert(this + "..");
}
$([5, 4, 3, 2, 1]).each(countdown);
will alert 5.. then 4.. then 3.. then 2.. then 1..
Map on the other hand takes an array, and ...
On localhost, how do I pick a free port number?
...cket.AF_INET, socket.SOCK_STREAM)) as s:
s.bind(('', 0))
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
return s.getsockname()[1]
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GIT repository layout for server with multiple projects
One of the things I like about the way I have Subversion set up is that I can have a single main repository with multiple projects. When I want to work on a project I can check out just that project. Like this
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