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How do I check if an HTML element is empty using jQuery?
...
if ($('#element').is(':empty')){
//do something
}
for more info see http://api.jquery.com/is/ and http://api.jquery.com/empty-selector/
EDIT:
As some have pointed, the browser interpretation of an empty element can vary. If you would like to ignore invisible elements such as s...
Reset push notification settings for app
...ut actually waiting a
day by setting the system clock
forward a day or more, turning the
device off completely, then turning
the device back on.
Update: As noted in the comments below, this solution stopped working since iOS 5.1. I would encourage filing a bug with Apple so they can update...
What's the difference between django OneToOneField and ForeignKey?
...sually best serve's one's interests. The reverse QuerySet will never have more than one element, right?
– Andy
Feb 26 '17 at 4:37
...
What is “entropy and information gain”?
...form some kind of pruning (see the Wikipedia links provided above to learn more).
– Amro
Mar 23 '15 at 22:56
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What is Scala's yield?
...simple map -- one generator with no if -- I'd certainly say calling map is more readable. If you have a several generators depending on each other, and/or filters, you may prefer a for expression.
– Alexey Romanov
Jun 27 '09 at 13:35
...
Capturing Groups From a Grep RegEx
...egex (and the one using grep) will match any of the following examples and more, which may not be what you're looking for:
123_abc_d4e5
xyz123_abc_d4e5
123_abc_d4e5.xyz
xyz123_abc_d4e5.xyz
To eliminate the second and fourth examples, make your regex like this:
^[0-9]+_([a-z]+)_[0-9a-z]*
which ...
How do I get a consistent byte representation of strings in C# without manually specifying an encodi
...ng wrong with this approach! Worrying about encodings just makes your life more complicated for no real reason.
Additional benefit to this approach:
It doesn't matter if the string contains invalid characters, because you can still get the data and reconstruct the original string anyway!
It will be ...
What goes into your .gitignore if you're using CocoaPods?
...cy so the Pods themselves can be generated from the podfile, ergo they are more like an intermediate build product than a source and, hence, don't need version control in my project.
share
|
improve...
How can I trim beginning and ending double quotes from a string?
...\"$ for this.
E.g.
string = string.replaceAll("^\"|\"$", "");
To learn more about regular expressions, have al ook at http://regular-expression.info.
That said, this smells a bit like that you're trying to invent a CSV parser. If so, I'd suggest to look around for existing libraries, such as Op...
Azure Blob Storage vs. File Service [closed]
... are stated as "the way to do it." However, they're not absolutes. They're more like suggestions, within that scenario. There are cases where you wouldn't want to use the Azure API directly, even with a new app. Likewise, there are cases where you may want to rework existing apps to use the Azure AP...