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JavaScript before leaving the page
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In order to have a popop with Chrome 14+, you need to do the following :
jQuery(window).bind('beforeunload', function(){
return 'my text';
});
The user will be asked if he want to stay or leave.
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Why do we have to specify FromBody and FromUri?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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WebSockets protocol vs HTTP
...b protocols:
TCP: low-level, bi-directional, full-duplex, and guaranteed order transport layer. No browser support (except via plugin/Flash).
HTTP 1.0: request-response transport protocol layered on TCP. The client makes one full request, the server gives one full response, and then the connection...
How to plot two columns of a pandas data frame using points?
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Why doesn't Java allow overriding of static methods?
... it is" rather than how it should be or more accurately how it could be in order to meet the expectations of the OP and, hence here, myself and others. There is no concrete reason to disallow the overriding of static methods other than "that's how it is". I think it's a flaw personally.
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How do I measure time elapsed in Java? [duplicate]
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Which types to use in order to accomplish this in Java?
The short answer is a long. Now, more on how to measure...
System.currentTimeMillis()
The "traditional" way to do this is indeed to use System.currentTimeMillis():
long startTime = Syste...
API vs. Webservice [closed]
...and/or protocols provided by libraries and/or operating system services in order to support the building of applications.
Webservice
A Web service (also Web Service) is defined by the W3C as "a software system designed to support interoperable machine-to-machine interaction over a network"
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PostgreSQL DISTINCT ON with different ORDER BY
...equal. [...] Note that the "first row" of each set is unpredictable unless ORDER BY is used to ensure that the desired row appears first. [...] The DISTINCT ON expression(s) must match the leftmost ORDER BY expression(s).
Official documentation
So you'll have to add the address_id to the order by...
Find index of last occurrence of a sub-string using T-SQL
...ion, followed CHARINDEX, followed again by REVERSE to restore the original order. For instance:
SELECT
mf.name
,mf.physical_name
,reverse(left(reverse(physical_name), charindex('\', reverse(physical_name)) -1))
from sys.master_files mf
shows how to extract the actual database file names f...
UIActivityViewController crashing on iOS 8 iPads
...the three following properties:
barButtonItem
sourceView
sourceRect
In order to specify the anchor point you will need to obtain a reference to the UIActivityController's UIPopoverPresentationController and set one of the properties as follows:
if ( [activityViewController respondsToSelector:@s...