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typeof !== “undefined” vs. != null
...gument, or as a global variable), I think the best way to do it is:
if (my_variable === undefined)
jQuery does it, so it's good enough for me :-)
Otherwise, you'll have to use typeof to avoid a ReferenceError.
If you expect undefined to be redefined, you could wrap your code like this:
(functi...
C++: What is the size of an object of an empty class?
...can be 1 because alignment doesn't matter here, as there is nothing to actually look at.
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How do I install Python packages on Windows?
I'm having a hard time setting up python packages. EasyInstall from SetupTools is supposed to help that, but they don't have an executable for Python 2.6.
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Is it acceptable and safe to run pip install under sudo?
...ns together will get me back on track :)
– markwalker_
Feb 22 '13 at 16:40
1
also, for installing...
JavaScript URL Decode function
...f I'm not mistaken, this is decoding + as %20, not as space - that's not really what you wanted here, is it? You'd want the space, not another version of an encoded character... no?
– Chris Moschini
Mar 1 '13 at 9:09
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JQuery to check for duplicate ids in a DOM
...contrast to traditional ASP.NET you're a lot more responsible for creating all the ids in your generated page. ASP.NET would give you nasty, but unique ids.
...
How to get memory available or used in C#
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It should probably be noted that a call to GetCurrentProcess will itself allocate quite a lot of resources. Call Dispose on the returned process when done, or wrap the whole code in a "using" scope.
– Mathias Lykkegaard Lorenzen
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string.IsNullOrEmpty(string) vs. string.IsNullOrWhiteSpace(string)
...ite
space besides empty string.
The term “white space” includes all characters that are not visible on
screen. For example, space, line break, tab and empty string are white
space characters*.
Reference : Here
For performance, IsNullOrWhiteSpace is not ideal but is
good. The ...
Warning: Found conflicts between different versions of the same dependent assembly
...o projects require different versions. You have a few options:
Recompile all projects to use the same versions (e.g. move all to .Net 3.5). This is the preferred option because all code is running with the versions of dependencies they were compiled with.
Add a binding redirect. This will suppress...
How to set request headers in rspec request spec?
...you would use: request.env["HTTP_ACCEPT"] =
– Alex Soto
Feb 6 '13 at 21:54
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