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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...
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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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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Sending event when AngularJS finished loading
...d to the exact answer...
EDIT 1 hour later:
Ok, well, I looked at ngCloak and it's really short. What this obviously implies is that the compile function won't get executed until {{template}} expressions have been evaluated (i.e. the template it loaded), thus the nice functionality of the ngCloak d...
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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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...
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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jQuery select by attribute using AND and OR operators
..., if it is possible in jQuery to select elements by named attributes using AND and OR.
8 Answers
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How do API Keys and Secret Keys work? Would it be secure if I have to pass my API and secret keys to
I am just starting to think about how api keys and secret keys work. Just 2 days ago I signed up for Amazon S3 and installed the S3Fox Plugin . They asked me for both my Access Key and Secret Access Key, both of which require me to login to access.
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