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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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Will Try / Finally (without the Catch) bubble the exception?
I am almost positive that the answer is YES. If I use a Try Finally block but do not use a Catch block then any exceptions WILL bubble. Correct?
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How can I get the list of a columns in a table for a SQLite database?
I am looking to retrieve a list of columns in a table. The database is the latest release of SQLite (3.6, I believe). I am looking for code that does this with a SQL query. Extra bonus points for metadata related to the columns (e.g. length, data type, etc...)
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Return value in a Bash function
I am working with a bash script and I want to execute a function to print a return value:
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Is there a way to chain multiple value converters in XAML?
I've got a situation in which I need to show an integer value, bound to a property on my data context, after putting it through two separate conversions:
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JVM option -Xss - What does it do exactly?
It says here that -Xss is used to "set thread stack size", what does it mean exactly? Could anyone help me understand this?
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How to get the sizes of the tables of a MySQL database?
I can run this query to get the sizes of all tables in a MySQL database:
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What is the theoretical maximum number of open TCP connections that a modern Linux box can have
Assuming infinite performance from hardware, can a Linux box support >65536 open TCP connections?
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How to truncate string using SQL server
i have large string in SQL Server. I want to truncate that string to 10 or 15 character
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Can I make fast forwarding be off by default in git?
I can't really ever think of a time when I would use git merge rather than git rebase and not want to have a commit show up. Is there any way to configure git to have fast forwarding off by default? The fact that there's an --ff option would seem to imply that there's a way, but I can't se...