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socket.io and session?
...lashsocket transport in my code.
To make it work, in the express/connect side, I explicitly define the session store so I can use it inside socket:
MemoryStore = require('connect/middleware/session/memory'),
var session_store = new MemoryStore();
app.configure(function () {
app.use(express.sessi...
jQuery get value of selected radio button
...adio button from a radio group. Every radio button in the group share same id.
27 Answers
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Uniq by object attribute in Ruby
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Use Array#uniq with a block:
@photos = @photos.uniq { |p| p.album_id }
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Why can a function modify some arguments as perceived by the caller, but not others?
... @MarkRansom, I think it does make sense if you want to provide optional output destination as in: def foo(x, l=None): l=l or []; l.append(x**2); return l[-1].
– Janusz Lenar
Aug 31 '12 at 13:03
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How to design a database for User Defined Fields?
...IMO this approach gives you schema with no knowledge as to what the schema means which is a recipe for disaster and a nightmare for report designers. I.e., you must have the meta data to know what column stores what data. If that metadata gets messed up, it has the potential to hose your data. Plus,...
Can C++ code be valid in both C++03 and C++11 but do different things?
...cle and the follow-up, which has a nice example of how >> can change meaning from C++03 to C++11 while still compiling in both.
bool const one = true;
int const two = 2;
int const three = 3;
template<int> struct fun {
typedef int two;
};
template<class T> struct fon {
st...
Using Git, show all commits that are in one branch, but not the other(s)
...ooking for. But, using ^ as a prefix here confused me. In this context it means exclude that branch. Using ^ as a suffix would be a relative reference to the parent commit of that branch.
– Joe Flynn
Jul 18 '13 at 16:38
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搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...r
输出日志如下，成功！
[initandlisten] MongoDB starting : pid=18285 port=27017 dbpath=/data/mongodbtest/master master=1
#日志显示主节点参数
[initandlisten] options: { dbpath: “/data/mongodbtest/master”, master: true }
……..
[initandlisten] waiting for connections ...
Can I add jars to maven 2 build classpath without installing them?
...s to this repository. The problem is in most cases this repository will reside on your local machine, so there'll be no way to resolve this dependency on any other machine. Clearly making your artifact depend on a specific machine is not a way to handle things. Otherwise this dependency will have to...
Does ruby have real multithreading?
...ds as Native Threads,
where "Native Threads" in case of the JVM obviously means "JVM
Threads". JRuby imposes no additional locking on them. So,
whether those threads can actually run in parallel depends on
the JVM: some JVMs implement JVM Threads as OS Threads and some
as Green Threads. (The ma...