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“Keep Me Logged In” - the best approach
My web application uses sessions to store information about the user once they've logged in, and to maintain that information as they travel from page to page within the app. In this specific application, I'm storing the user_id , first_name and last_name of the person.
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Eclipse Workspaces: What for and why?
..., read and thought of different ways of using workspaces (per project, per application (multi-asseted or not), per program language, per target (web-development, plugins,..), and so on) and I am still doubting what the best approach is.
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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...Fold.
Conclusion
There is a difference between reduce and fold even when applied to non-empty sequences. The former is defined as part of the MapReduce programming paradigm on collections with arbitrary order (http://theory.stanford.edu/~sergei/papers/soda10-mrc.pdf) and one ought to assume operat...
How to Detect if I'm Compiling Code with a particular Visual Studio version?
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It appear that this macro doesn't reflect the compiler version used by the project. I.e. if you open a VS2010 project in a newer version without upgrading the project this macro doesn't reflect the compiler being used - only the...
How to detect Ctrl+V, Ctrl+C using JavaScript?
... I needed to enable users to select an "element" (calendar entry) in a web app I'm writing, hit ctrl + c to "copy" it, then ctrl+v to "paste" it, all without actually interacting with the allmighty blessed clipboard. ctrl+c I remember what they're clicked on, ctrl+v I duplicate it, everyone wins.
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How do I list all files of a directory?
...:
import glob
txtfiles = []
for file in glob.glob("*.txt"):
txtfiles.append(file)
glob with list comprehension
import glob
mylist = [f for f in glob.glob("*.txt")]
glob with a function
The function returns a list of the given extension (.txt, .docx ecc.) in the argument
import ...
What's the “big idea” behind compojure routes?
I'm new to Clojure and have been using Compojure to write a basic web application. I'm hitting a wall with Compojure's defroutes syntax, though, and I think I need to understand both the "how" and the "why" behind it all.
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What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?
...cifications is as follows.
For ClassNotFoundException:
Thrown when an application tries to
load in a class through its string
name using:
The forName method in class Class.
The findSystemClass method in class ClassLoader.
The loadClass method in class ClassLoader.
but n...
Does Spring @Transactional attribute work on a private method?
... Method visibility and @Transactional
When using proxies, you should apply
the @Transactional annotation only
to methods with public visibility. If
you do annotate protected, private or
package-visible methods with the
@Transactional annotation, no error
is raised, but the annotate...
What's the difference between utf8_general_ci and utf8_unicode_ci?
...justify the performance cost. Today, that performance cost has all but disappeared, and developers are treating internationalization more seriously.
There's an argument to be made that if speed is more important to you than accuracy, you may as well not do any sorting at all. It's trivial to make ...