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Paperclip::Errors::MissingRequiredValidatorError with Rails 4
... to deal with the spoofing validation explained here https://stackoverflow.com/a/23846121
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How to do a safe join pathname in ruby?
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I recommend using File.join
>> File.join("path", "to", "join")
=> "path/to/join"
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How is the java memory pool divided?
...but, depending on the implementation, a Java VM may not garbage collect or compact it. Like the heap memory, the method area may be of a fixed or variable size. The memory for the method area does not need to be contiguous.
Permanent Generation: The pool containing all the reflective data of the v...
Using @include vs @extend in Sass?
...tainable by using extends and mixins effectively: http://thecodingdesigner.com/posts/balancing
Note that SASS unfortunately does not allow using extends inside media queries (and corresponding example from the above link is wrong). In the situation where you need to extend based on media queries, u...
How to empty/destroy a session in rails?
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How to remove globally a package from Composer?
I ran this command to install globally PHPUnit :
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How do I get a YouTube video thumbnail from the YouTube API?
...ed images. They are predictably formatted as follows:
https://img.youtube.com/vi/<insert-youtube-video-id-here>/0.jpg
https://img.youtube.com/vi/<insert-youtube-video-id-here>/1.jpg
https://img.youtube.com/vi/<insert-youtube-video-id-here>/2.jpg
https://img.youtube.com/vi/<inse...
ValueError : I/O operation on closed file
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Percentage Height HTML 5/CSS
... edited May 23 '17 at 10:31
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111 silver badge
answered Oct 25 '09 at 21:17
bobincebobince
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