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Align contents inside a div

...d to make sure Standards Mode is on by using a suitable DOCTYPE. If you really need to support IE5/Quirks Mode, which these days you shouldn't really, it is possible to combine the two different approaches to centering: <div style="text-align: center"> <div style="width: 50%; margin: ...
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Why always ./configure; make; make install; as 3 separate steps?

...guration. Also ./configure checks for missing libraries that should be installed. Anything wrong here causes not to build your application. That's why distros have packages that are installed on different places, because every distro thinks it's better to install certain libraries and files to certa...
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What should every programmer know about security? [closed]

...pplications to be secure: Never trust any input! Validate input from all untrusted sources - use whitelists not blacklists Plan for security from the start - it's not something you can bolt on at the end Keep it simple - complexity increases the likelihood of security holes Keep your attack s...
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Is Unit Testing worth the effort? [closed]

...en and personal benefits as well as the obvious ones that you just can't really explain to somebody until they're doing it themselves. But, ignoring that, here's my attempt! Unit Tests allows you to make big changes to code quickly. You know it works now because you've run the tests, when you ma...
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How to auto-indent code in the Atom editor?

... you auto-indent your code in the Atom editor? In other editors you can usually select some code and auto-indent it. 11 An...
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Why do I need to explicitly push a new branch?

... did git push my branch was not uploaded to the repository. I had to actually do: git push -u origin --all . Why is this? Isn't a branch a new change to be pushed by default? Why do I need to run the second command? ...
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Check if $_POST exists

...sts and if it does, print it inside another string, if not, don't print at all. 14 Answers ...
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BASH copy all files except one

I would like to copy all files out of a dir except for one named Default.png. It seems that there are a number of ways to do this. What seems the most effective to you? ...
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How do you get the current time of day?

..., I undid your -1's. The question is "How do I get the time of day", which all answers answer. Your downvoting is because you read the question as "How to format hours like 5:00 PM", while OP only (and explicitly) mentioned that specific date format as an example. You even downvoted @Musikero31's an...
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Look up all descendants of a class in Ruby

... @AmolPujari p ObjectSpace.each_object(Class) will print out all the classes. You can also get the descendants of any class you want by substutiting its name for self in the line of code in the method. – BobRodes Apr 3 '19 at 20:38 ...