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Sass calculate percent minus px

... from one unit to the next. Sass has no way of knowing exactly how wide "100%" is in terms of pixels or any other unit. That's something only the browser knows. You need to use calc() instead. Check browser compatibility on Can I use... .foo { height: calc(25% - 5px); } If your values are...
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What does the caret operator (^) in Python do?

...y one) of the operands (evaluates to) true. To demonstrate: >>> 0^0 0 >>> 1^1 0 >>> 1^0 1 >>> 0^1 1 To explain one of your own examples: >>> 8^3 11 Think about it this way: 1000 # 8 (binary) 0011 # 3 (binary) ---- # APPLY XOR ('vertically') 10...
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How to synchronize a static variable among threads running different instances of a class in Java?

...s on the class object. public class Test { private static int count = 0; public static synchronized void incrementCount() { count++; } } Explicitly synchronize on the class object. public class Test { private static int count = 0; public void incrementCount() { ...
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Reading a string with scanf

... 140 An array "decays" into a pointer to its first element, so scanf("%s", string) is equivalent to s...
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How to resolve “must be an instance of string, string given” prior to PHP 7?

... 205 Prior to PHP 7 type hinting can only be used to force the types of objects and arrays. Scalar t...
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How do I specify multiple targets in my podfile for my Xcode project?

... CocoaPods 1.0 has changed the syntax for this. It now looks like this: def shared_pods pod 'SSKeychain', '~> 0.1.4' pod 'INAppStoreWindow', :head pod 'AFNetworking', '1.1.0' pod 'Reachability', '~> 3.1.0' pod ...
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How to calculate the difference between two dates using PHP?

...rom this it's rather easy to calculate different time periods. $date1 = "2007-03-24"; $date2 = "2009-06-26"; $diff = abs(strtotime($date2) - strtotime($date1)); $years = floor($diff / (365*60*60*24)); $months = floor(($diff - $years * 365*60*60*24) / (30*60*60*24)); $days = floor(($diff - $years ...
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Generate random numbers using C++11 random library

...u can see his full talk here: http://channel9.msdn.com/Events/GoingNative/2013/rand-Considered-Harmful #include <random> #include <iostream> int main() { std::random_device rd; std::mt19937 mt(rd()); std::uniform_real_distribution<double> dist(1.0, 10.0); for (in...
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Check if a value is within a range of numbers

...e. You don't need "multiple if" statements to do it, either: if (x >= 0.001 && x <= 0.009) { // something } You could write yourself a "between()" function: function between(x, min, max) { return x >= min && x <= max; } // ... if (between(x, 0.001, 0.009)) { //...
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Sending multipart/formdata with jQuery.ajax

...the server? The resulting array ( $_POST ) on the serverside php-script is 0 ( NULL ) when using the file-input. 14 Answers...