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How to empty/destroy a session in rails?
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Resets the session by clearing out all
the objects stored within and
initializing a new session object.
Good luck!
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How do I create a class instance from a string name in ruby?
I have the name of a class and I want to create an instance of that class so that I can loop through each rails attribute that is present in the schema of that class.
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how do I insert a column at a specific column index in pandas?
Can I insert a column at a specific column index in pandas?
4 Answers
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Forcing child to obey parent's curved borders in CSS
I have a div inside of another div. #outer and #inner . #outer has curved borders and a white background. #inner has no curved borders and a green background. #inner extends beyond the curved borders of #outer . Is there anyway to stop this?
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Pull request without forking?
...I, github recently added a button to merged pull requests to make it easy (and intuitive) to delete the pull request branch: github.com/blog/1335-tidying-up-after-pull-requests
– David M
Feb 11 '13 at 22:36
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Confusion between factor levels and factor labels
There seems to be a difference between levels and labels of a factor in R.
Up to now, I always thought that levels were the 'real' name of factor levels, and labels were the names used for output (such as tables and plots). Obviously, this is not the case, as the following example shows:
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Ruby regular expression using variable name
...resting if var can contain regular expression meta-characters. If it does and you want those matacharacters to do what they usually do in a regular expression, then the same gsub will work:
var = "Value|a|test"
str = "a test Value"
str.gsub( /#{var}/, 'foo' ) # => "foo foo foo"
However, if yo...
What is the difference between a dialog being dismissed or canceled in Android?
...ys, what is the difference between a dialog being dismissed or canceled in Android?
4 Answers
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Forgot “git rebase --continue” and did “git commit”. How to fix?
...rebasing code in git, I got some merge conflicts. I resolved the conflicts and did:
4 Answers
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Why specify @charset “UTF-8”; in your CSS file?
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It tells the browser to read the css file as UTF-8. This is handy if your CSS contains unicode characters and not only ASCII.
Using it in the meta tag is fine, but only for pages that include that meta tag.
Read about the rules for character set resolution of CSS files at the w3c spe...