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What's the difference between the atomic and nonatomic attributes?

...ynthesized setter/getter will ensure that a whole value is always returned from the getter or set by the setter, regardless of setter activity on any other thread. That is, if thread A is in the middle of the getter while thread B calls the setter, an actual viable value -- an autoreleased object,...
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How can I read command line parameters from an R script?

...ample: spec <- matrix(c( 'in' , 'i', 1, "character", "file from fastq-stats -x (required)", 'gc' , 'g', 1, "character", "input gc content file (optional)", 'out' , 'o', 1, "character", "output filename (optional)", 'help' , 'h', 0, "logical", "this ...
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When should you not use virtual destructors?

...destructor when any of the below is true: No intention to derive classes from it No instantiation on the heap No intention to store in a pointer of a superclass No specific reason to avoid it unless you are really so pressed for memory. ...
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Can't use NVM from root (or sudo)

...entioned that my application uses different version of NodeJS when running from sudo . 10 Answers ...
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Formula to determine brightness of RGB color

...olor was used. Each color is represented by 2x2 pixels, colors are sorted from darkest to lightest (left to right, top to bottom). 1st picture - Luminance (relative) 0.2126 * R + 0.7152 * G + 0.0722 * B 2nd picture - http://www.w3.org/TR/AERT#color-contrast 0.299 * R + 0.587 * G + 0.114 * B ...
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How do I delete an Azure storage account containing a leased blob?

...that the container has an active disk artifact and the advice to remove it from the repository. The procedure to remove the disk image from the blob repository is: Go to the Windows Azure Management Portal. Click on Virtual Machines. Click on Disks. Click on the disk. Click on Delete Disk. Afte...
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Why can I use a function before it's defined in JavaScript?

... to be bound before anything in its code-block* is executed. This differs from an assignment with a function expression, which is evaluated in normal top-down order. If you changed the example to say: var internalFoo = function() { return true; }; it would stop working. The function declaratio...
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Including non-Python files with setup.py

...this is a very seamless "upgrade". Here's a full (but untested) example: from setuptools import setup, find_packages setup( name='your_project_name', version='0.1', description='A description.', packages=find_packages(exclude=['ez_setup', 'tests', 'tests.*']), package_data={''...
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Get host domain from URL?

how to get host domain from a string URL? 9 Answers 9 ...
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How can I send large messages with Kafka (over 15MB)?

...this is the largest size of the message that can be received by the broker from a producer. Broker side (per topic): max.message.bytes - this is the largest size of the message the broker will allow to be appended to the topic. This size is validated pre-compression. (Defaults to broker's message.ma...