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CocoaPods - use specific pod version

I am using CocoaPods for a macOS app. I have compilation errors with AFNetworking (current version, 1.2.1) and saw that these didn't exist in the previous version (1.2.0). ...
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Get program execution time in the shell

I want to execute something in a linux shell under a few different conditions, and be able to output the execution time of each execution. ...
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How do I convert a float number to a whole number in JavaScript?

I'd like to convert a float to a whole number in JavaScript. Actually, I'd like to know how to do BOTH of the standard conversions: by truncating and by rounding. And efficiently, not via converting to a string and parsing. ...
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How to turn NaN from parseInt into 0 for an empty string?

Is it possible somehow to return 0 instead of NaN when parsing values in JavaScript? 18 Answers ...
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How do I use arrays in C++?

C++ inherited arrays from C where they are used virtually everywhere. C++ provides abstractions that are easier to use and less error-prone ( std::vector<T> since C++98 and std::array<T, n> since C++11 ), so the need for arrays does not arise quite as often as it does in C. However, ...
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How can I scale an image in a CSS sprite

In this article, http://css-tricks.com/css-sprites/ , it talks about how can I crop off a smaller image from 1 bigger image. Can you please tell me if it is possible/how I can crop off a smaller image and then scale the cropped off region before I lay it out? ...
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Validate phone number with JavaScript

I found this code in some website, and it works perfectly. It validates that the phone number is in one of these formats: (123) 456-7890 or 123-456-7890 ...
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String output: format or concat in C#?

Let's say that you want to output or concat strings. Which of the following styles do you prefer? 31 Answers ...
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Numpy: Divide each row by a vector element

Suppose I have a numpy array: 5 Answers 5 ...
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Cost of exception handlers in Python

In another question , the accepted answer suggested replacing a (very cheap) if statement in Python code with a try/except block to improve performance. ...