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What’s the best RESTful method to return total number of items in an object?

I’m developing a REST API service for a large social networking website I’m involved in. So far, it’s working great. I can issue GET , POST , PUT and DELETE requests to object URLs and affect my data. However, this data is paged (limited to 30 results at a time). ...
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Objective-C pass block as parameter

How can I pass a Block to a Function / Method ? 11 Answers 11 ...
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How do I test if a variable is a number in Bash?

I just can't figure out how do I make sure an argument passed to my script is a number or not. 38 Answers ...
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What is the difference between the GNU Makefile variable assignments =, ?=, := and +=?

Can anybody give a clear explanation of how variable assignment really works in Makefiles. 6 Answers ...
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Is it a good practice to place C++ definitions in header files?

My personal style with C++ has always to put class declarations in an include file, and definitions in a .cpp file, very much like stipulated in Loki's answer to C++ Header Files, Code Separation . Admittedly, part of the reason I like this style probably has to do with all the years I spent coding...
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Database Structure for Tree Data Structure

What would be the best way to implement a customizable (meaning, a tree structure with an unknown number of level) tree data structure in a database? ...
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ValueError: invalid literal for int() with base 10: ''

I am creating a program that reads a file and if the first line of the file is not blank, it reads the next four lines. Calculations are performed on those lines and then the next line is read. If that line is not empty it continues. However, I am getting this error: ...
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Using getResources() in non-activity class

I am trying to use getResources method in a non-activity class. How do I get the reference to the "resources" object so that I can access the xml file stored under resources folder? ...
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Is short-circuiting logical operators mandated? And evaluation order?

Does the ANSI standard mandate the logical operators to be short-circuited, in either C or C++? 7 Answers ...
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C# code to validate email address

What is the most elegant code to validate that a string is a valid email address? 43 Answers ...