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Understanding promises in Node.js
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Promises in node.js promised to do some work and then had separate callbacks that would be executed for success and failure as well as handling timeouts. Another way to think of promises in node.js was that they were emitters that could emit only two events: success and...
What are the barriers to understanding pointers and what can be done to overcome them? [closed]
Why are pointers such a leading factor of confusion for many new, and even old, college level students in C or C++? Are there any tools or thought processes that helped you understand how pointers work at the variable, function, and beyond level?
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Why should I learn Lisp? [closed]
I really feel that I should learn Lisp and there are plenty of good resources out there to help me do it.
29 Answers
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UIButton: how to center an image and a text using imageEdgeInsets and titleEdgeInsets?
If I put only an image in a button and set the imageEdgeInsets more close to the top, the image stays centered and all works as expected:
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How to study design patterns? [closed]
...reading about them. Take some sample implementations that you find online and build up around them.
A great resource is the Data & Object Factory page. They go over the patterns, and give you both conceptual and real world examples. Their reference material is great, too.
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“Active Directory Users and Computers” MMC snap-in for Windows 7?
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For Windows Vista and Windows 7 you need to get the Remote Server Administration Tools (RSAT) - the Active Directory Users & Computers Snap-In is included in that pack. Download link: Remote Server Administration Tools for Windows 7.
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Repeat String - Javascript
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Note to new readers: This answer is old and and not terribly practical - it's just "clever" because it uses Array stuff to get
String things done. When I wrote "less process" I definitely meant
"less code" because, as others have noted in subsequent answers, it...
What makes Lisp macros so special?
...not had the privilege of using Lisp macros. As someone who wants to understand the buzz, please explain what makes this feature so powerful.
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Explain the use of a bit vector for determining if all characters are unique
...ay be a little bit faster, because operations with bits are very low level and can be executed as-is by CPU. BitVector allows writing a little bit less cryptic code instead plus it can store more flags.
For future reference: bit vector is also known as bitSet or bitArray. Here are some links to thi...
Is there any reason for using WebGL instead of 2D Canvas for 2D games/apps?
...more platfrom-independant
So I'll discuss the differences between canvas and webGL APIs regarding these qualities.
Both canvas and webGL are JavaScript APIs. They are pretty much the same regarding integration (binding). They are both supported by a number of libraries that could speed up your ...