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Relation between CommonJS, AMD and RequireJS?

...hingElse = function() { return someModule.doSomething() + "bar"; }; Basically, CommonJS specifies that you need to have a require() function to fetch dependencies, an exports variable to export module contents and a module identifier (which describes the location of the module in question in relat...
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Create a tag in a GitHub repository

...m the official Linux Kernel Git documentation for git push: --tags All refs under refs/tags are pushed, in addition to refspecs explicitly listed on the command line. Or if you just want to push a single tag: git push origin <tag> See also my answer to How do you push a tag to a r...
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How to get all subsets of a set? (powerset)

...owerset([4, 5, 6]))) Using yield means that you do not need to calculate all results in a single piece of memory. Precalculating the masks outside the main loop is assumed to be a worthwhile optimization. share | ...
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How to determine the Boost version on a system?

... If you want to figure it out manually (rather than in-code), the go to the include directory, and open up version.hpp. BOOST_VERSION takes a bit of deciphering, but BOOST_LIB_VERSION is pretty clear. The value of mine is currently "1_42" ...
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How can I get current location from user in iOS

...@end MainFile In the init method locationManager = [[CLLocationManager alloc] init]; locationManager.delegate = self; locationManager.distanceFilter = kCLDistanceFilterNone; locationManager.desiredAccuracy = kCLLocationAccuracyBest; [locationManager startUpdatingLocation]; Callback function -...
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Why does volatile exist?

...ed 16 bit value as a semaphore to know when the other guy was done. Essentially we did this: void waitForSemaphore() { volatile uint16_t* semPtr = WELL_KNOWN_SEM_ADDR;/*well known address to my semaphore*/ while ((*semPtr) != IS_OK_FOR_ME_TO_PROCEED); } Without volatile, the optimizer sees ...
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pytest: assert almost equal

... I noticed that this question specifically asked about py.test. py.test 3.0 includes an approx() function (well, really class) that is very useful for this purpose. import pytest assert 2.2 == pytest.approx(2.3) # fails, default is ± 2.3e-06 assert 2.2 == pyte...
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More elegant way of declaring multiple variables at the same time

...variables with Boolean values is the best way to write your routine (especially if they really have one-letter names :) Depending on what you're doing, it may make sense to use a dictionary instead. For example, if you want to set up Boolean preset values for a set of one-letter flags, you could d...
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Creating your own header file in C

... I was wondering if you could elaborate on how to compile with all required files and not have to include foo.c into gcc program argument. What is this technique called or what program can accomplish this outside of IDE - Make comes to my mind – nf071590 ...
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How to install therubyracer gem on 10.10 Yosemite?

I don't manage to install therubyracer gem on Yosemite 10.10. 18 Answers 18 ...