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Why does the expression 0 < 0 == 0 return False in Python?

...o say 0 &lt; x &lt;= 5 than to say (0 &lt; x) and (x &lt;= 5). These are called chained comparisons. And that's a link to the documentation for them. With the other cases you talk about, the parenthesis force one relational operator to be applied before the other, and so they are no longer chained...
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Get image data url in JavaScript?

...on. The images seem very similar/the same, still the Javascripted one is smaller and I'd love them to be exactly the same. One more thing: the input image is a small (594 bytes), 28x30 PNG with transparent background -- if that changes anything. – Detariael Ju...
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How do you reset the Zoom in Visual Studio 2010 and above

... must be turned on to see the zoom level. Tools / Options / Text Editor / All Languages / Scroll Bars Another option (Visual Studio 2013/2015) is to use Ctrl with the mouse wheel (up to zoom in, down to zoom out). share ...
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Getting the names of all files in a directory with PHP

... Not all filenames have the form *.*: just use * instead. – jameshfisher Feb 24 '14 at 17:17 ...
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How to find out if you're using HTTPS without $_SERVER['HTTPS']

...PHP as a Fast-CGI application). Also, Apache 1.x servers (and broken installations) might not have $_SERVER['HTTPS'] defined even if connecting securely. Although not guaranteed, connections on port 443 are, by convention, likely using secure sockets, hence the additional port check. Additional n...
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Can Powershell Run Commands in Parallel?

...o do some batch processing on a bunch of images and I'd like to do some parallel processing. Powershell seems to have some background processing options such as start-job, wait-job, etc, but the only good resource I found for doing parallel work was writing the text of a script out and running thos...
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Why do we copy then move?

...rvalues, the above would not compile. Won't a copy be expensive, especially given something like std::string? If you pass an rvalue, that will be moved into str, and that will eventually be moved into data. No copying will be performed. If you pass an lvalue, on the other hand, that lvalue wil...
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Android: Access child views from a ListView

... adapter. It might not be fully visible (and might not even be visible at all, depending on ListView's threshold of &quot;visibility&quot; before recycling a view that it considers is &quot;scrolled out of view&quot;) – Joe Oct 31 '13 at 16:33 ...
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How do I get Flask to run on port 80?

...roxy HTTP traffic through apache2 to Flask. This way, apache2 can handle all your static files (which it's very good at - much better than the debug server built into Flask) and act as a reverse proxy for your dynamic content, passing those requests to Flask. Here's a link to the official documen...
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How to implement the factory method pattern in C++ correctly

... First of all, there are cases when object construction is a task complex enough to justify its extraction to another class. I believe this point is incorrect. The complexity doesn't really matter. The relevance is what does. I...