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What is the difference between a symbolic link and a hard link?

... (Or is it multiple inodes? Not sure.) A file in the file system is basically a link to an inode. A hard link, then, just creates another file with a link to the same underlying inode. When you delete a file, it removes one link to the underlying inode. The inode is only deleted (or deletable/ove...
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Architecture of a single-page JavaScript web application?

...x single-page JS web application be structured on the client-side? Specifically I'm curious about how to cleanly structure the application in terms of its model objects, UI components, any controllers, and objects handling server persistence. ...
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R memory management / cannot allocate vector of size n Mb

... Consider whether you really need all this data explicitly, or can the matrix be sparse? There is good support in R (see Matrix package for e.g.) for sparse matrices. Keep all other processes and objects in R to a minimum when you need to make obj...
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2D cross-platform game engine for Android and iOS? [closed]

... found it's 2D part with OnGUI() or GUITextures too clumsy. Also, even a smallest game done on Unity3d is at least 10MB download which is just too much for a 2D game. ...
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How to generate a number of most distinctive colors in R?

... I joined all qualitative palettes from RColorBrewer package. Qualitative palettes are supposed to provide X most distinctive colours each. Of course, mixing them joins into one palette also similar colours, but that's the best I can g...
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Is there an easy way to create ordinals in C#?

... This page gives you a complete listing of all custom numerical formatting rules: Custom numeric format strings As you can see, there is nothing in there about ordinals, so it can't be done using String.Format. However its not really that hard to write a function to d...
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jQuery .data() does not work, but .attr() does

...e such a strange bug. After the doc loads, I loop some elements that originally have data-itemname="" , and I set those values using .attr("data-itemname", "someValue") . ...
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Error renaming a column in MySQL

... Keep in mind that in this solution you lose all other column definitions such as nullability, default value, etc. (see: stackoverflow.com/questions/8553130/…). – Dejan Jul 13 '15 at 10:50 ...
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Why use getters and setters/accessors?

... There are actually many good reasons to consider using accessors rather than directly exposing fields of a class - beyond just the argument of encapsulation and making future changes easier. Here are the some of the reasons I am aware of...
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How to effectively work with multiple files in Vim

...e and close a tab, you can also use ZZ instead of :wq (just like would normally save and close) – Andreas Grech May 5 '10 at 14:34 ...