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Received fatal alert: handshake_failure through SSLHandshakeException
...rs may ignore this, but the same is not the case for SSL clients (like the HttpsURLConnection class, or any HTTP Client library like Apache HttpComponents Client).
Most these client classes/libraries would rely on the trust store used by the JVM for certificate validation. In most cases, this will ...
How to prevent ifelse() from turning Date objects into numeric objects
...d on user selection of which attributes to preserve. The request is here: https://bugs.r-project.org/bugzilla/show_bug.cgi?id=16609 - It has already been flagged as "WONTFIX" on the grounds that it has always been the way it is now, but I have provided a follow-up argument on why a simple addition ...
What is JavaScript garbage collection?
...cope variable. All
of those objects are instructed to
tear themselves down, which destroys
any circular references.
The main purpose of garbage collection is to allow the programmer not to worry about memory management of the objects they create and use, though of course there's no avoid...
Understand convertRect:toView:, convertRect:FromView:, convertPoint:toView: and convertPoint:fromVie
...y). For example, (2, 1) means that the point is 2 pixels left, and 1 pixel down.
You can read up more about coordinate systems here - http://en.wikipedia.org/wiki/Coordinate_system
But what you need to know is that, in iOS, every view has it's OWN coordinate system, where the top left corner is th...
How to stop unwanted UIButton animation on title change?
...get to add the [UIView setAnimationsEnabled:YES], or for it to get removed down the track.
– siburb
Jun 12 '14 at 6:51
19
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How to save MySQL query output to excel or .txt file? [duplicate]
... the server machine that the client does not have access any way. I voted down this answer.
– Kemin Zhou
Aug 25 '17 at 0:55
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show 1 more c...
Call a function after previous function is complete
... @trusktr In that case you need to keep passing the first callback down to the n th level of asynchronous call, then fire callBack() after all n asynchronous calls are done. Since OP has not mentioned what he is doing in the function its assumed it as one level asynchronous call.
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Guid is all 0's (zeros)?
...
down-voted because the line "Guid = Guid.NewGuid();" may confuse newer developers. Consider editing to something like "Guid someGuid = Guid.NewGuid();" like the g2 line ;)
– daviesdoesit
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Rotating a two-dimensional array in Python
... the great wikipedia page on the subject (in "Common rotations" paragraph:
https://en.wikipedia.org/wiki/Rotation_matrix#Ambiguities
Then I wrote the following code, super verbose in order to have a clear understanding of what is going on.
I hope that you'll find it useful to dig more in the very ...
Get decimal portion of a number with JavaScript
.... If you answer .09 it implies that you have actually calculated/measured down to 100ths precision, when in fact the original input was only accurate to 10ths precision.
– jomofrodo
Nov 14 '14 at 19:11
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