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In Windows Azure: What are web role, worker role and VM role?
...b, worker) are essentially Windows Server. Web and Worker roles are nearly identical:
Web roles are Windows Server VMs with IIS enabled
Worker roles are Windows Server VMs with IIS disabled (and you could manually enable it)
VM roles are Windows Server 2008 images you construct locally via Hyper-V...
What's the difference between using CGFloat and float?
...t, including the kernel and user applications. Apple's 64-bit Transition Guide for Cocoa is a useful resource.
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Is C++14 adding new keywords to C++?
...uto delete inline short typeid
bool do int signed typename
break double long sizeof union
case dynamic_cast mutable static ...
Why are joins bad when considering scalability?
...e raw joins and make them much faster:
Join on a surrogate key (autonumer/identity column) rather than a natural key. This means smaller (and therefore faster) comparisons during the join operation
Indexes
Materialized/indexed views (think of this as a pre-computed join or managed de-normalization)...
Is it necessary to explicitly remove event handlers in C#
... service which lets you subscribe to asynchronous notifications about bandwidth changes, and the transfer service object is long-lived. If we do this:
BandwidthUI ui = new BandwidthUI();
transferService.BandwidthChanged += ui.HandleBandwidthChange;
// Suppose this blocks until the transfer is compl...
What are the disadvantages to declaring Scala case classes?
...t the good bits:
Everything immutable by default
Yes, and can even be overridden (using var) if you need it
Getters automatically defined
Possible in any class by prefixing params with val
Decent toString() implementation
Yes, very useful, but doable by hand on any class if necessary
Compliant equal...
How to check if a variable is a dictionary in Python?
...em from inheriting a bad implementation to begin with ('god object's, overriding standard library/language constructs, etc.) The original question is itself an XY problem. Why does the OP need to check type? Because according to their code what they really want to do is to check whether an item in t...
What's the dSYM and how to use it? (iOS SDK)
...
if you want to be able to see crashlogs inside apple connect you can include the app symbols when you upload the app to the app store. if you are using crashlytics you don't have to do it but it doesn't hurt to include the app symbols (the dsym file) and send it to ap...
Knight's Shortest Path on Chessboard
...alt
previous[v] := u
return dist[]
EDIT:
as moron, said using the
http://en.wikipedia.org/wiki/A*_algorithm
can be faster.
the fastest way, is
to pre-calculate all the distances
and save it to a 8x8 full matrix.
well, I would call that cheating,
and works only because the probl...
Logback to log different messages to two files
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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