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What does the “map” method do in Ruby?
I'm new to programming. Can someone explain what .map would do in:
7 Answers
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How to create GUID / UUID?
...trying to create globally-unique identifiers in JavaScript. I'm not sure what routines are available on all browsers, how "random" and seeded the built-in random number generator is, etc.
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How to use mod operator in bash?
I'm trying a line like this:
4 Answers
4
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CRON job to run on the last day of the month
I need to create a CRON job that will run on the last day of every month.
I will create it using cPanel.
15 Answers
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How can you detect the version of a browser?
I've been searching around for code that would let me detect if the user visiting the website has Firefox 3 or 4. All I have found is code to detect the type of browser but not the version.
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How do you remove a specific revision in the git history?
Suppose your git history looks like this:
9 Answers
9
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What does the ??!??! operator do in C?
I saw a line of C that looked like this:
4 Answers
4
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Calculate distance between 2 GPS coordinates
How do I calculate distance between two GPS coordinates (using latitude and longitude)?
29 Answers
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Where can I set environment variables that crontab will use?
I have a crontab running every hour. The user running it has environment variabless in the .bash_profile that work when the user runs the job from the terminal, however, obviously these don't get picked up by crontab when it runs.
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How to remove all MySQL tables from the command-line without DROP database permissions? [duplicate]
How do I drop all tables in Windows MySQL, using command prompt? The reason I want to do this is that our user has access to the database drops, but no access to re-creating the database itself, for this reason we must drop the tables manually. Is there a way to drop all the tables at once? Bear in ...