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System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()

...ost efficient since it does not even create an object, but new Date() is really just a thin wrapper about a long, so it is not far behind. Calendar, on the other hand, is relatively slow and very complex, since it has to deal with the considerably complexity and all the oddities that are inherent to...
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Why do I get “Pickle - EOFError: Ran out of input” reading an empty file?

... catching an EOF exception won't save you from all the other potential errors. – Padraic Cunningham Jul 16 '14 at 23:06 ...
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How to run a shell script in OS X by double-clicking?

... to select terminal you need to switch from "Recommended Applications" to "All Applications". (The Terminal.app application can be found in the Utilities folder) NOTE that unless you don't want to associate all files with this extension to be run in terminal you should not have "Always Open With" c...
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HashSet vs. List performance

... lot of people are saying that once you get to the size where speed is actually a concern that HashSet<T> will always beat List<T>, but that depends on what you are doing. Let's say you have a List<T> that will only ever have on average 5 items in it. Over a large number of cycle...
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How to allow keyboard focus of links in Firefox?

... In System Preferences → Keyboard, in the Shortcuts pane, check the “all controls” radio at the bottom. In Firefox, type "about:config" in the URL bar. There is no accessibility.tabfocus preference on the mac, so you'll have to make one. Right click in the window, create a new "integer" pref...
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Assembly code vs Machine code vs Object code?

...e to machine code with the use of an assembler or a compiler, though we usually think of compilers in association with high-level programming language that are abstracted further from the CPU instructions. Building a complete program involves writing source code for the program in either assembly or...
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clear table jquery

... this is working, but this removing the 'tbody' itself with all the 'tr' inside it. – Hakan Fıstık Nov 15 '16 at 14:45 ...
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How to match, but not capture, part of a regex?

...avaScript, yay! would be nice to have a JS friendly method, but not bad at all, +0.5 (rounding up ;D ) – GiantCowFilms Mar 27 '15 at 2:37 ...
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JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images

...n to the EXIF orientation problem, correctly rotating/mirroring images for all 8 exif orientations. See the online demo of javascript exif orientation The image is drawn onto an HTML5 canvas. Its correct rendering is implemented in js/load-image-orientation.js through canvas operations. Hope this ...
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How many parameters are too many? [closed]

...e first place, and qualifying your question as much as you did, that you really know all of this. The best solution here is not to rely on a hard and fast number, but instead look towards design reviews and code reviews among your peers to identify areas where you have low cohesion and tight coupli...