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Why is it faster to check if dictionary contains the key, rather than catch the exception in case it
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Why should I use Restify?
...pt alive causing improved performance due to reduced overhead.
This is 2015 and I think the situation has changed a lot since. Raygun.io has posted a recent benchmark comparing hapi, express and restify.
It says:
We also identified that Restify keeps connections alive which removes the ove...
What are the underlying data structures used for Redis?
...u have JSON or MessagePack you may just store objects as strings. In Redis 2.6 you can even manipulate this kind of object server side using Lua scripts.
Another interesting usage of strings is bitmaps, and in general random access arrays of bytes, since Redis exports commands to access random rang...
How to use MySQL DECIMAL?
...cial data.
DOUBLE is actually just a double precision (64 bit instead of 32 bit) version of FLOAT. Floating point numbers are approximate representations of real numbers and they are not exact. In fact, simple numbers like 0.01 do not have an exact representation in FLOAT or DOUBLE types.
DECIMAL ...
What are the differences between Generics in C# and Java… and Templates in C++? [closed]
...t to interoperate with them. This is not that big of a problem, because C# 2.0 binary code is not backwards compatible. The only time this will ever happen is if you're upgrading some old C# 1.0/1.1 code to C# 2.0
Java Generics allow you to declare something like this.
ArrayList<Person> foo = ...
How to detect which one of the defined font was used in a web page?
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I've seen it done in a kind of iffy, but pretty reliable way. Basically, an element is set to us...
How do you read CSS rule values with JavaScript?
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Adapted from here, building on scunliffe's answer:
function getStyle(className) {
var cssTe...
any tool for java object to object mapping? [closed]
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answered Sep 16 '09 at 12:52
skaffmanskaffman
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Changing iframe src with Javascript
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In this case, it's probably because you are using the wrong brackets here:
document.getElement...
How to print something without a new line in ruby
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answered Jan 4 '12 at 6:54
Sergio TulentsevSergio Tulentsev
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