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Real mouse position in canvas [duplicate]
...raw with the mouse over a HTML5 canvas, but the only way that it seems to work well is if the canvas is in the position 0,0 (upper left corner) if I change the canvas position, for some reason it doesn't draw like it should. Here is my code.
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Function to clear the console in R and RStudio
...nction to clear the console in R and, in particular, RStudio I am looking for a function that I can type into the console, and not a keyboard shortcut.
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Best way to combine two or more byte arrays in C#
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For primitive types (including bytes), use System.Buffer.BlockCopy instead of System.Array.Copy. It's faster.
I timed each of the suggested methods in a loop executed 1 million times using 3 arrays of 10 bytes each. Here are ...
How to fire AJAX request Periodically?
This script reloads or refresh the page after every 5 seconds. But I want to do it using jQuery and AJAX call. Is it possible?
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How to order events bound with jQuery
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I had been trying for ages to generalize this kind of process, but in my case I was only concerned with the order of first event listener in the chain.
If it's of any use, here is my jQuery plugin that binds an event listener that is always t...
Unicode character in PHP string
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Because JSON directly supports the \uxxxx syntax the first thing that comes into my mind is:
$unicodeChar = '\u1000';
echo json_decode('"'.$unicodeChar.'"');
Another option would be to use mb_convert_encoding()
echo mb_convert_encoding('&#x100...
How to query SOLR for empty fields?
I have a large solr index, and I have noticed some fields are not updated correctly (the index is dynamic).
7 Answers
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Get Context in a Service
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I had this problem, but it turned out that it was the worker thread that had no context. I solved it my passing a context when constructing the thread.
– ctrl-alt-delor
Jan 31 '13 at 9:19
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Serializing with Jackson (JSON) - getting “No serializer found”?
...eption when trying to serialize a very simple object using Jackson. The error:
18 Answers
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How to generate an openSSL key using a passphrase from the command line?
First - what happens if I don't give a passphrase? Is some sort of pseudo random phrase used? I'm just looking for something "good enough" to keep casual hackers at bay.
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