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What is the global interpreter lock (GIL) in CPython?
...iew this video or look at this set of slides. It might be too much information, but then you did ask for details :-)
Note that Python's GIL is only really an issue for CPython, the reference implementation. Jython and IronPython don't have a GIL. As a Python developer, you don't generally come acros...
What is the difference between Modal and Push segue in Storyboards?
...
A push Segue is adding another VC to the navigation stack. This assumes that VC that originates the push is part of the same navigation controller that the VC that is being added to the stack belongs to. Memory management is not an issue with navigation controllers and a...
Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
... React: Rethinking best practices -- JSConf EU 2013 ) and the speaker mentioned that dirty-checking of the model can be slow. But isn't calculating the diff between virtual DOMs actually even less performant since the virtual DOM, in most of the cases, should be bigger than model?
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Drawing an SVG file on a HTML5 canvas
...ugs (but nightly has fixed them).
var img = new Image();
img.onload = function() {
ctx.drawImage(img, 0, 0);
}
img.src = "http://upload.wikimedia.org/wikipedia/commons/d/d2/Svg_example_square.svg";
Live example here. You should see a green square in the canvas. The second green square on the pa...
YouTube iframe API: how do I control an iframe player that's already in the HTML?
...
Fiddle Links: Source code - Preview - Small version
Update: This small function will only execute code in a single direction. If you want full support (eg event listeners / getters), have a look at Listening for Youtube Event in jQuery
As a result of a deep code analysis,...
Using varchar(MAX) vs TEXT on SQL Server
...acement for the TEXT datatype in SQL Server 2005 and Next SQL SERVER versions.
5 Answers
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Is there a CSS selector by class prefix?
...is picks up div elements whose class attribute meets either of these conditions:
[class^="status-"] — starts with "status-"
[class*=" status-"] — contains the substring "status-" occurring directly after a space character. Class names are separated by whitespace per the HTML spec, hence the si...
python requests file upload
...ests
>>> open('file.txt', 'wb') # create an empty demo file
<_io.BufferedWriter name='file.txt'>
>>> files = {'upload_file': open('file.txt', 'rb')}
>>> print(requests.Request('POST', 'http://example.com', files=files).prepare().body.decode('ascii'))
--c226ce13d0984...
What is the precise meaning of “ours” and “theirs” in git?
This might sound like too basic of a question, but I have searched for answers and I am more confused now than before.
7 An...
Simple insecure two-way data “obfuscation”?
I'm looking for very simple obfuscation (like encrypt and decrypt but not necessarily secure) functionality for some data. It's not mission critical. I need something to keep honest people honest, but something a little stronger than ROT13 or Base64 .
...