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How can I output leading zeros in Ruby?
I'm outputting a set of numbered files from a Ruby script. The numbers come from incrementing a counter, but to make them sort nicely in the directory, I'd like to use leading zeros in the filenames. In other words
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Check if $_POST exists
I'm trying to check whether a $_POST exists and if it does, print it inside another string, if not, don't print at all.
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Exit codes in Python
I got a message saying script xyz.py returned exit code 0 . What does this mean?
13 Answers
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Creating an empty file in C#
What's the simplest/canonical way to create an empty file in C#/.NET?
7 Answers
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How to print a stack trace in Node.js?
Does anyone know how to print a stack trace in Node.js?
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How do I get the logfile from an Android device?
I would like to pull the log file from a device to my PC. How can I do that?
13 Answers
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What's the best three-way merge tool? [closed]
Subversion, Git, Mercurial and others support three-way merges (combining mine, theirs, and the "base" revision) and support graphical tools to resolve conflicts.
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From Arraylist to Array
I want to know if it is safe/advisable to convert from ArrayList to Array?
I have a text file with each line a string:
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How to allocate aligned memory only using the standard library?
...a job interview, and one question stumped me, even using Google for reference. I'd like to see what the StackOverflow crew can do with it:
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how to draw smooth curve through N points using javascript HTML5 canvas?
For a drawing application, I'm saving the mouse movement coordinates to an array then drawing them with lineTo. The resulting line is not smooth. How can I produce a single curve between all the gathered points?
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