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Jinja2 template variable if None Object set a default value
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This works for a simple variable, but not for this question where you're looking to grab a field out of a more complex one. I would downvote this, since it's not a good answer to the original question... and yet at the same time, knowing about default is exactly what I neede...
Pretty git branch graphs
I've seen some books and articles have some really pretty looking graphs of git branches and commits. How can I make high-quality printable images of git history?
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How do I find which rpm package supplies a file I'm looking for?
...ly would come with the php-devel package. I guessed that yum would install the mod_files.sh file with the php-devel x86_64 5.1.6-23.2.el5_3 package, but the file appears to not to be installed on my filesystem.
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When to use @QueryParam vs @PathParam
... parameters. Putting optional parameters in the path will end up getting really messy when trying to write URL handlers that match different combinations.
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Find the closest ancestor element that has a specific class
... ((el = el.parentElement) && !((el.matches || el.matchesSelector).call(el,sel)));
return el;
}
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iOS Safari – How to disable overscroll but allow scrollable divs to scroll normally?
...n(e){
e.preventDefault();
});
// Uses body because jQuery on events are called off of the element they are
// added to, so bubbling would not work if we used document instead.
$('body').on('touchstart', selScrollable, function(e) {
if (e.currentTarget.scrollTop === 0) {
e.currentTarget.scrol...
How to configure postgresql for the first time?
I have just installed postgresql and I specified password x during installation.
When I try to do createdb and specify any password I get the message:
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How do I detect if I am in release or debug mode?
... this value is not 100% reliable from Eclipse-based builds, though I personally have not encountered a problem, so I cannot say how much of an issue it really is.
If you are using Android Studio, or if you are using Gradle from the command line, you can add your own stuff to BuildConfig or otherwis...
DbEntityValidationException - How can I easily tell what caused the error?
I have a project that uses Entity Framework. While calling SaveChanges on my DbContext , I get the following exception:
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How to delete items from a dictionary while iterating over it?
...--------------------------------------------------
Traceback (most recent call last):
File "<ipython console>", line 1, in <module>
RuntimeError: dictionary changed size during iteration
As stated in delnan's answer, deleting entries causes problems when the iterator tries to move on...