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Fast way to get image dimensions (not filesize)

I'm looking for a fast way to get the height and width of an image in pixels. It should handle at least JPG, PNG and TIFF, but the more the better. I emphasize fast because my images are quite big (up to 250 MB) and it takes soooo long to get the size with ImageMagick's identify because it obv...
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Function of Project > Clean in Eclipse

...ders that you have in your project (they can choose to interpret clean command however they like) and whether you have auto-build turned on. If auto-build is on, invoking clean is equivalent of a clean build. First artifacts are removed, then a full build is invoked. If auto-build is off, clean will...
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How to get an object's properties in JavaScript / jQuery?

... You can look up an object's keys and values by either invoking JavaScript's native for in loop: var obj = { foo: 'bar', base: 'ball' }; for(var key in obj) { alert('key: ' + key + '\n' + 'value: ' + obj[key]); } or using jQuery's .each()...
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How to sort git tags by version string order of form rc-X.Y.Z.W?

When I enter a command: 7 Answers 7 ...
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How does having a dynamic variable affect performance?

...hat just has the metadata analyzer, the semantic analyzer for expressions, and an emitter that emits Expression Trees instead of IL. The metadata analyzer uses Reflection to determine the type of the object in d1, and then passes that to the semantic analyzer to ask what happens when such an objec...
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Mixins vs. Traits

What is the difference between Mixins and Traits? 2 Answers 2 ...
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Hidden Features of Java

...e per-thread state. Since JDK 1.5 Java has had extremely well implemented and robust concurrency tools beyond just locks, they live in java.util.concurrent and a specifically interesting example is the java.util.concurrent.atomic subpackage that contains thread-safe primitives that implement the co...
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Any way to break if statement in PHP?

Is there any command in PHP to stop executing the current or parent if statement, same as break or break(1) for switch / loop . For example ...
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How to join two sets in one line without using “|”

Assume that S and T are assigned sets. Without using the join operator | , how can I find the union of the two sets? This, for example, finds the intersection: ...
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Can you delete multiple branches in one command with Git?

... be suitable output, while git branch has pretty output with things like * and -> (for symrefs) which can mess you up in scripts/one-liners. – Cascabel Sep 8 '10 at 23:05 3 ...