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Why CancellationToken is separate from CancellationTokenSource?

... design allows the two key operations (initiating a cancellation request vs. observing and responding to cancellation) to be cleanly separated. In particular, methods that take only a CancellationToken can observe a cancellation request but cannot initiate one. Link: .NET 4 Cancellation Fr...
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Is there a concise way to iterate over a stream with indices in Java 8?

... work. You can't have different segments of a pipeline running in parallel vs sequential. Only the last of parallel or sequential is honored when the terminal operation commences. – Stuart Marks Aug 15 '14 at 22:03 ...
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How can I determine the direction of a jQuery scroll event?

... Check current scrollTop vs previous scrollTop var lastScrollTop = 0; $(window).scroll(function(event){ var st = $(this).scrollTop(); if (st > lastScrollTop){ // downscroll code } else { // upscroll code } lastScrollT...
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Why not use exceptions as regular flow of control?

... | edited Oct 27 '11 at 13:41 glmxndr 41k2727 gold badges8888 silver badges114114 bronze badges ...
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Differences between Java 8 Date Time API (java.time) and Joda-Time

...u003cpath fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M25.6622 17.6335C27.8049 17.6335 29.3739 16.9402 30.2537 15.6379C30.8468 14.7755 30.9615 13.5579 30.9615 11.9512V6.59049C30.9615 5.28821 30.4833 4.66231 29.4502 4.66231C28.9913 4.66231 28.4555 4.94978 28.1109 5.50789C27.499 4.86533 26.7335 4....
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Can you “ignore” a file in Perforce?

... community wiki 21 revs, 2 users 98%Colonel Panic 2 ...
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What is the difference between call and apply?

...ly. I can't tell you exactly why. See jsPerf, http://jsperf.com/test-call-vs-apply/3 [UPDATE!] Douglas Crockford mentions briefly the difference between the two, which may help explain the performance difference... http://youtu.be/ya4UHuXNygM?t=15m52s Apply takes an array of arguments, while C...
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Why start an ArrayList with an initial capacity?

...aranteed to run in O(1). 1000000 + 1000000 = 2000000 operations Java vs C# Java is as above, starting at 10 and increasing each resize at 50% + 1. C# starts at 4 and increases much more aggressively, doubling at each resize. The 1000000 adds example from above for C# uses 3097084 operations. ...
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How do I get the path of the current executed file in Python?

...e not so small... might be a load immediate or something even faster for 0 vs a load global for _?) Debatable whether it's cleaner or easier to read or even more clever/obscure. – ArtOfWarfare Dec 22 '17 at 22:19 ...
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How do you build a Singleton in Dart?

...are singleton patterns. It's really a question of syntax "new Singleton()" vs "singleton". I find the latter more clear. Dart's factory constructors are useful, but I don't think this is a good use case for them. I also think Dart's lazy initialisation is a great feature, which is underused. Also re...