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Converting NSString to NSDate (and back again)

...he date formatter locale to "en_US_POSIX". Taken from the Data Formatting Guide If you're working with fixed-format dates, you should first set the locale of the date formatter to something appropriate for your fixed format. In most cases the best locale to choose is en_US_POSIX, a locale...
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Cocoa: What's the difference between the frame and the bounds?

...to move/translate the origin. See "View Geometry" in the "View Programming Guide for Cocoa" for more info. – Meltemi Jul 31 '09 at 2:09 127 ...
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Hidden Features of MySQL

...ems to require a fair bit of planning and re-organizing the SQL queries to guide MySQL to execute them faster. Administration: max_connections is the number of concurrent connections. The default value is 100 connections (151 since 5.0) - very small. Note: connections take memory and your OS mi...
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How to use the pass statement?

...ning Python and I have reached the section about the pass statement. The guide I'm using defines it as being a Null statement that is commonly used as a placeholder. ...
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What is the difference between a heuristic and an algorithm?

...ime of algorithms, by adding 'expert information' or 'educated guesses' to guide the search direction. In practice, a heuristic may also be a sub-routine for an optimal algorithm, to determine where to look first. (note 1): Additionally, algorithms are characterised by whether they include random ...
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What is the use of join() in Python threading?

... about the main thread, Is the first thread is main thread, If not, please guide me? – Rohit Khatri Aug 11 '16 at 6:14 ...
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REST API 404: Bad URI, or Missing Resource?

...ty/document/etc. The same would hold for the more secure technique using a GUID http://mywebsite/api/user/3dd5b770-79ea-11e1-b0c4-0800200c9a66 and the api/restapi argument above. However, if the requested resource ID was included in the request header [include your own example], or indeed, in the U...
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Accessing an array out of bounds gives no error, why?

... also built on another rule which makes bounds-checking non-ideal. The C++ guiding principle is "you don't pay for what you don't use". If your code is correct, you don't need bounds-checking, and you shouldn't be forced to pay for the overhead of runtime bounds-checking. So C++ offers the std::vect...
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Node.js Best Practice Exception Handling

...was thrown that interrupts that flow. Take a look at bluebird promises: https://github.com/petkaantonov/bluebird Note that I haven't found many other libraries other than these that properly handle thrown exceptions. jQuery's deferred, for example, don't - the "fail" handler would never get the...
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Get an object properties list in Objective-C

... found an example from iOS documentation: "Objective-C Runtime Programming Guide: Declared Properties". Here is a revised code for property listing in iOS 3.2: #import <objc/runtime.h> #import <Foundation/Foundation.h> ... unsigned int outCount, i; objc_property_t *properties = class_c...