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Test whether a glob has any matches in bash
... in terms of conciseness and minimizing potential side effects.
UPDATE: Example usage requested.
if compgen -G "/tmp/someFiles*" > /dev/null; then
echo "Some files exist."
fi
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How to re-raise an exception in nested try/except blocks?
I know that if I want to re-raise an exception, I simple use raise without arguments in the respective except block. But given a nested expression like
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Add line break within tooltips
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Just use the entity code 
 for a linebreak in a title attribute.
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Can Vim highlight matching HTML tags like Notepad++?
...ses, and square brackets. This is great for editing C-style languages like PHP and JavaScript. But what about matching HTML tags?
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Bomb dropping algorithm
...to bomb the hollow rectangle of
squares just inside the perimeter. I'll call the perimeter layer 1, and the rectangle inside it layer 2.
An important insight is that there is no point bombing layer 1, because the
"blast radius" you get from doing so is always contained within the blast radius of...
How to have conditional elements and keep DRY with Facebook React's JSX?
How do I optionally include an element in JSX? Here is an example using a banner that should be in the component if it has been passed in. What I want to avoid is having to duplicate HTML tags in the if statement.
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HTTP Content-Type Header and JSON
...ot the answer you're looking for? Browse other questions tagged javascript php json http or ask your own question.
Removing double quotes from variables in batch file creates problems with CMD environment
... Thanks, this was what I was after SET BathFileAndPath=%~0 (actually, my param array starts with 1 so I used SET BathFileAndPath=%~1
– Valamas
Jan 21 '14 at 5:39
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What is the simplest and most robust way to get the user's current location on Android?
...able I start location listeners and timeout timer. It's 20 seconds in my example, may not be enough for GPS so you can enlarge it.
If I get update from location listener I use the provided value. I stop listeners and timer.
If I don't get any updates and timer elapses I have to use last known values...
support FragmentPagerAdapter holds reference to old fragments
... fragments that have been added to the fragment manager are saved automatically. Even if your app is killed, this information is restored when you relaunch your app.
Now consider that you have viewed a few pages, Fragments A, B and C. You know that these have been added to the fragment manager. Bec...