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How are the points in CSS specificity calculated

... Pekka's answer is practically correct, and probably the best way to think about the issue. However, as many have already pointed out, the W3C CSS recommendation states that "Concatenating the three numbers a-b-c (in a number system with a large base) gives the sp...
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Why always ./configure; make; make install; as 3 separate steps?

...aces, because every distro thinks it's better to install certain libraries and files to certain directories. It is said to run ./configure, but in fact you should change it always. For example have a look at the Arch Linux packages site. Here you'll see that any package uses a different configure ...
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How would you implement an LRU cache in Java?

...ructures would you use? I've already implemented one using LinkedHashMap and Collections#synchronizedMap , but I'm curious if any of the new concurrent collections would be better candidates. ...
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How to select date from datetime column?

... The first one is very slow and ignores the indexes. It is better to have LIKE 'date%' – kachar Feb 22 '13 at 10:03 ...
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Auto-expanding layout with Qt-Designer

... of your widget/dialog/window (not the QVBoxLayout, but the parent widget) and select Lay Out -> Lay Out in a Grid from the bottom of the context-menu. The QVBoxLayout should now stretch to fit the window and will resize automatically when the entire window is resized. ...
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phonegap open link in browser

hey experts i am using phonegap 2.9.0 and i am using the above code to open the link in the browser but it opens it in the same app...... how to open it safari browser? ...
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How can I combine two commits into one commit? [duplicate]

...a branch 'firstproject' with 2 commits. I want to get rid of these commits and make them appear as a single commit. 3 Answ...
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Why can't I define a static method in a Java interface?

...ic interface methods were initially considered as a small language change, and then there was an official proposal to add them in Java 7, but it was later dropped due to unforeseen complications. Finally, Java 8 introduced static interface methods, as well as override-able instance methods with a d...
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Trying to fix line-endings with git filter-branch, but having no luck

... Windows/Linux line-ending issue with git. It seems, via GitHub, MSysGit, and other sources, that the best solution is to have your local repos set to use linux-style line endings, but set core.autocrlf to true . Unfortunately, I didn't do this early enough, so now every time I pull changes the...
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What reason is there to use null instead of undefined in JavaScript?

I've been writing JavaScript for quite a long time now, and I have never had a reason to use null . It seems that undefined is always preferable and serves the same purpose programmatically. What are some practical reasons to use null instead of undefined ? ...