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Why is this program valid? I was trying to create a syntax error

I'm running ActiveState's 32 bit ActivePerl 5.14.2 on Windows 7. I wanted to mess around with a Git pre-commit hook to detect programs being checked in with syntax errors. (Somehow I just managed to do such a bad commit.) So as a test program I randomly jotted this: ...
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Fluid width with equally spaced DIVs

I have a fluid width container DIV. 7 Answers 7 ...
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How to remove an element from an array in Swift

How can I unset/remove an element from an array in Apple's new language Swift? 18 Answers ...
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How do I check for null values in JavaScript?

How can I check for null values in JavaScript? I wrote the code below but it didn't work. 19 Answers ...
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Applying function with multiple arguments to create a new pandas column

I want to create a new column in a pandas data frame by applying a function to two existing columns. Following this answer I've been able to create a new column when I only need one column as an argument: ...
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Exit Shell Script Based on Process Exit Code

I have a shell script that executes a number of commands. How do I make the shell script exit if any of the commands exit with a non-zero exit code? ...
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ERROR: Error installing capybara-webkit:

Any suggestions on how to fix? 7 Answers 7 ...
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A regex to match a substring that isn't followed by a certain other substring

I need a regex that will match blahfooblah but not blahfoobarblah 5 Answers 5 ...
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Make footer stick to bottom of page correctly [duplicate]

I am trying to have my footer (just a div with a line of text in it) be at the bottom of the screen if the content doesn't go all the way to the bottom, or be at the bottom of the content if the content requires scroll bars. If the content doesn't require scroll bars, it works perfectly, but when t...
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What is the best way to test for an empty string in Go?

Which method is best (more idomatic) for testing non-empty strings (in Go)? 10 Answers ...