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C# switch statement limitations - why?
...onstant time branch. The compiler may find short-cuts (using hash buckets, etc), but more complicated cases will generate more complicated MSIL code with some cases branching out earlier than others.
To handle the String case, the compiler will end up (at some point) using a.Equals(b) (and possibl...
What is Dependency Injection and Inversion of Control in Spring Framework?
...ow how to call my code. This is achieved using events/delegates, callbacks etc. Here the Control of flow is "Inverted".
So, instead of depending the flow of control on statically bound objects, the flow depends upon the overall object graph and the relations between different objects.
Dependency I...
What is the best algorithm for overriding GetHashCode?
... just wrap
{
int hash = 17;
// Suitable nullity checks etc, of course :)
hash = hash * 23 + field1.GetHashCode();
hash = hash * 23 + field2.GetHashCode();
hash = hash * 23 + field3.GetHashCode();
return hash;
}
}
As noted in comments, you may...
Why do we need the “event” keyword while defining events?
...yone can remove other people's event handlers, raise the event themselves, etc - it's an encapsulation disaster.
For more on events (and delegates) read my article on this topic. (At some point I need to update this for C# 4, which changes field-like events very slightly. The gist of it is still co...
Advantages of stateless programming?
...unexpected effect on global state, or read/write the registry/environment, etc.) I would posit that at least 1 in 3 'hard bugs' fall into this category.
Now if you switch to stateless/immutable/pure programming, all those bugs go away. You are presented with some new challenges instead (e.g. when...
What is the maximum size of a web browser's cookie's key?
...ou read about is for the entire cookie, including name, value, expiry date etc. If you want to support most browsers, I suggest keeping the name under 4000 bytes, and the overall cookie size under 4093 bytes.
One thing to be careful of: if the name is too big you cannot delete the cookie (at least ...
Facebook database design?
...d various triggers could fire to cascade events of friending, defriending, etc.
– Jesse C. Slicer
May 14 '12 at 22:05
1
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Android Log.v(), Log.d(), Log.i(), Log.w(), Log.e() - When to use each one?
...ine what is considered a debug log versus informational, versus and error, etc. etc.
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node and Error: EMFILE, too many open files
...ockets is a good example), you can permanently increase the limit:
file: /etc/pam.d/common-session (add to the end)
session required pam_limits.so
file: /etc/security/limits.conf (add to the end, or edit if already exists)
root soft nofile 40000
root hard nofile 100000
restart your node...
How to avoid long nesting of asynchronous functions in Node.js
...
// one more inline callback function ...
});
});
// etc ...
});
Could be rewritten to look something like this:
var moreDataParser = function (moreData) {
// date parsing logic
};
var someDataParser = function (someData) {
// some data parsing logic
getMoreData(c...