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What is the difference between gsub and sub methods for Ruby Strings
...iced before. I've been using :gsub and it appears that they are essentially the same. Can anyone explain the difference to me? Thanks!
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How to compare Unicode characters that “look alike”?
I fall into a surprising issue.
10 Answers
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SQL JOIN - WHERE clause vs. ON clause
After reading it, this is not a duplicate of Explicit vs Implicit SQL Joins .
The answer may be related (or even the same) but the question is different.
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Is errno thread-safe?
In errno.h , this variable is declared as extern int errno; so my question is, is it safe to check errno value after some calls or use perror() in multi-threaded code. Is this a thread safe variable? If not, then whats the alternative ?
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How to check if field is null or empty in MySQL?
I am trying to figure out how to check if a field is NULL or empty . I have this:
7 Answers
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Hidden Features of VB.NET?
I have learned quite a bit browsing through Hidden Features
of C# and was surprised when I couldn't find something
similar for VB.NET.
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How to jump directly to a column number in Vim
...ave to do the exciting job of wading through minified javascript code. The lines are upto 600 columns wide. The exception reporting library is kind enough to provide me the exact crash coordinates in the form of line number and column number. However I can't find a way to directly jump to the column...
Test if a command outputs an empty string
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Why is it important to override GetHashCode when Equals method is overridden?
Given the following class
14 Answers
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Should you always favor xrange() over range()?
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