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What is :: (double colon) in Python when subscripting sequences?

I know that I can use something like string[3:4] to get a substring in Python, but what does the 3 mean in somesequence[::3] ? ...
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HTTP GET with request body

... only the request URI. Update The RFC2616 referenced as "HTTP/1.1 spec" is now obsolete. In 2014 it was replaced by RFCs 7230-7237. Quote "the message-body SHOULD be ignored when handling the request" has been deleted. It's now just "Request message framing is independent of method semantics, even i...
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How do I check if a Sql server string is null or empty

...ffer_Text == '') temp := null; else temp := listing.Offer_Text; // may now be null or non-null, but not '' // b) ISNULL: if (temp is null) result := true; else result := false; share | impr...
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Import regular CSS file in SCSS file?

...st use a different tool to import your CSS files, it's easier and it works now. I use gulp-import-css, I'm not sure what's the Grunt equivalent. – fregante May 18 '14 at 2:32 3 ...
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Send a pull request on GitHub for only latest commit

.... The pull request UI on github.com shows the last 9 commits and I don't know how to filter that down. 7 Answers ...
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Fast stable sorting algorithm implementation in javascript

... stable sort. I've written an article about it on my blog if you want to know more about this technique and how to implement it: http://blog.vjeux.com/2010/javascript/javascript-sorting-table.html share | ...
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How can I be notified when an element is added to the page?

... Warning! This answer is now outdated. DOM Level 4 introduced MutationObserver, providing an effective replacement for the deprecated mutation events. See this answer for a better solution than the one presented here. Seriously. Don't poll the DOM ev...
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Where can I find Android source code online? [closed]

...up android. Some of the projects (such as Kernel) have been removed and it now only points you to clonable git repositories. To get all the code locally, you can use the repo helper program, or you can just clone individual repositories. And others: Downloading the Source Tree ...
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Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?

... evicted) than there is no problem with cache misses with matice2 either. Now to go deeper in how caches works, if byte address of your variable is X, than the cache line for it would be (X >> 6) & (L - 1). Where L is total number of cache lines in your cache. L is always power of 2. The...
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When to use UICollectionView instead of UITableView?

...do that with collectionview). I was always using tableviews by default but now I doubt if that makes sense to switch to collectionviews instead. Am I missing something? – vir us Aug 29 '17 at 16:11 ...