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JavaScript and Threads
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See http://caniuse.com/#search=worker for the most up-to-date support info.
The following was the state of support circa 2009.
The words you want to google for are JavaScript Worker Threads
Apart from from Gears there's noth...
How do I check if an HTML element is empty using jQuery?
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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 spaces and line...
What does JVM flag CMSClassUnloadingEnabled actually do?
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Update This answer is relevant for Java 5-7, Java 8 has this fixed: https://blogs.oracle.com/poonam/about-g1-garbage-collector,-permanent-generation-and-metaspace Kudos go to mt.uulu
For Java 5-7:
The standard Oracle/Sun VM look on the world is: Classes are forever. So once loaded, they sta...
Push Notifications in Android Platform
... near real time push notification? )
I recently started playing with MQTT http://mqtt.org for Android as a way of doing this sort of thing (i.e. push notification that is not SMS but data driven, almost immediate message delivery, not polling, etc.)
I have a blog post with background information o...
Table with fixed header and fixed column on pure css
...;
</tr>
</tbody>
</table>
</div>
https://jsfiddle.net/qwubvg9m/1/
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Is it possible to center text in select box?
I tried this: http://jsfiddle.net/ilyaD/KGcC3/
20 Answers
20
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Global and local variables in R
...ou can have a look at these two links for understanding how to use them:
http://stat.ethz.ch/R-manual/R-devel/library/base/html/environment.html
http://stat.ethz.ch/R-manual/R-devel/library/base/html/get.html
Here you have a small example:
test.env <- new.env()
assign('var', 100, envir=test...
How to create a jQuery function (a new jQuery method or plugin)?
... the selector
}
}
This is usually called a jQuery plugin.
Example - http://jsfiddle.net/VwPrm/
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Redirecting to URL in Flask
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app = Flask(__name__)
@app.route('/')
def hello():
return redirect("http://www.example.com", code=302)
if __name__ == '__main__':
# Bind to PORT if defined, otherwise default to 5000.
port = int(os.environ.get('PORT', 5000))
app.run(host='0.0.0.0', port=port)
See the documentat...
Moment JS - check if a date is today or in the future
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After reading the documentation: http://momentjs.com/docs/#/displaying/difference/, you have to consider the diff function like a minus operator.
// today < future (31/01/2014)
today.diff(future) // today - future < 0
future.diff(to...