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What is an EJB, and what does it do?
...Bs today are usually "bigger, stronger, faster (or at least more scalable) and simpler" than POJOs. They are most valuable for servicing large numbers of users over the web or corporate network and somewhat less valuable for small apps within a department.
Reusing/Sharing Logic across multiple ap...
Unicode (UTF-8) reading and writing to files in Python
I'm having some brain failure in understanding reading and writing text to a file (Python 2.4).
14 Answers
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JavaScript: empty array, [ ] evaluates to true in conditional structures. Why is this?
...zero in quotes), "false" (false in quotes), empty functions, empty arrays, and empty objects.
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How to remove a column from an existing table?
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Your example is simple and doesn’t require any additional table changes but generally speaking this is not so trivial.
If this column is referenced by other tables then you need to figure out what to do with other tables/columns. One option is t...
Why would a post-build step (xcopy) occasionally exit with code 2 in a TeamCity build?
... will appear as "exited with code 2". When you run the same xcopy at a command prompt, you'll see that xcopy is asking for a response of file or directory.
To resolve this issue with an automated build, you can echo in a pre-defined response with a pipe.
To say the thing you are copying is a file,...
gulp.run is deprecated. How do I compose tasks?
...ugh you still can) to run tasks. You can give watch an array of task names and it will do this for you.
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Site does not exist error for a2ensite
... Weird! This used to work fine without an extension in Ubuntu 12.04 and 12.10.
– FloatingRock
Mar 26 '14 at 11:21
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Rails: redirect_to with :error, but flash[:error] empty
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As stated in the Rails API only :notice and :alert are by default applied as a flash hash value. If you need to set the :error value, you can do it like this:
redirect_to show_path, flash: { error: "Insufficient rights!" }
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How to force maven update?
I imported my already working project on another computer and it started to download dependencies.
25 Answers
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Understanding generators in Python
I am reading the Python cookbook at the moment and am currently looking at generators. I'm finding it hard to get my head round.
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