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What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
All the examples of strong parameters in Rails 4 docs use
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How and where are Annotations used in Java?
What are the major areas that we can use Annotations? Is the feature a replacement for XML based configuration?
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How to find out what group a given user has?
In Unix/Linux, how do you find out what group a given user is in via command line?
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JavaScript - cannot set property of undefined
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ZSH complains about RVM __rvm_cleanse_variables: function definition file not found
When using the latest ZSH and RVM on Mac OS X 10.7.4 ZSH complains about this:
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In c++ what does a tilde “~” before a function name signify?
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MySQL Select Date Equal to Today
I'm trying to run a mysql select statement where it looks at today's date and only returns results that signed up on that current day. I've currently tried the following, but it doesn't seem to work.
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jQuery duplicate DIV into another DIV
Need some jquery help copying a DIV into another DIV and hoping that this is possible. I have the following HTML:
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Use JSTL forEach loop's varStatus as an ID
I want to use the count from the JSTL forEach loop, but my code doesnt seem to work.
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How to add new item to hash
I'm new to Ruby and don't know how to add new item to already existing hash. For example, first I construct hash:
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