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Force the origin to start at 0
How can I set the origin / interception of the y-axis and x-axis in ggplot2?
3 Answers
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Knight's Shortest Path on Chessboard
I've been practicing for an upcoming programming competition and I have stumbled across a question that I am just completely bewildered at. However, I feel as though it's a concept I should learn now rather than cross my fingers that it never comes up.
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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 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, ...
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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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.
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SQL query return data from multiple tables
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6 Answers
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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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