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How to filter SQL results in a has-many-through relation

... I was curious. And as we all know, curiosity has a reputation for killing cats. So, which is the fastest way to skin a cat? The precise cat-skinning environment for this test: PostgreSQL 9.0 on Debian Squeeze with decent RAM and settings. 6.000 ...
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What are the differences in die() and exit() in PHP?

... aliases allows programmers to use the one which is comfortable with. I remember exit better than die. Some others remember die better than exit. – mauris Nov 25 '09 at 6:35 ...
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Input placeholders for Internet Explorer

HTML5 introduced the placeholder attribute on input elements, which allows to display a greyed-out default text. 17 Ans...
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Java Immutable Collections

... Unmodifiable collections are usually read-only views (wrappers) of other collections. You can't add, remove or clear them, but the underlying collection can change. Immutable collections can't be changed at all - they don't wrap another collection - they h...
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How to deal with floating point number precision in JavaScript?

...at depends on what kind of calculations you’re doing. If you really need your results to add up exactly, especially when you work with money: use a special decimal datatype. If you just don’t want to see all those extra decimal places: simply format your result rounded to a fix...
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jQuery Mobile: document ready vs. page events

...date: My original article was intended for old way of page handling, basically everything before jQuery Mobile 1.4. Old way of handling is now deprecated and it will stay active until (including) jQuery Mobile 1.5, so you can still use everything mentioned below, at least until next year and jQuery...
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What is a Portable Class Library?

...for such purposes. UPDATE Apr 19 2013: Excellent dense summary of how it all hangs together from Intellisense through to run time in a blog post by Simon Cooper Video: Channel 9 Visual Studio Toolbox show episode 14 June 2012 Video: Channel 9 Going Deep Show episode 27 Sep 2011 UPDATE Sep 1...
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How do I make Git ignore file mode (chmod) changes?

...it handles the executable bit correctly and this variable is automatically set as necessary. A repository, however, may be on a filesystem that handles the filemode correctly, and this variable is set to true when created, but later may be made accessible from another envir...
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Is it possible to have SSL certificate for IP address, not domain name?

... I absolutely see your point with the cookies, you're totally right. But to switch to a SSL IP to save the few ms of DNS lookup sounds more hassle to me than it's worth. Plus, you may have issues taking your IP with you if you ever have to change your provider - it's probably not p...
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How can I implement a tree in Python?

... I came across this answer via Google. This library is really nice. I especially love the ability to use the mixin class to make an tree of any object! – Rÿck Nöthing Mar 8 '19 at 1:21 ...