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How can I make my flexbox layout take 100% vertical space?
How can I tell a flexbox layout row consume the remaining vertical space in a browser window?
3 Answers
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Why can't I have “public static const string S = ”stuff"; in my Class?
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const makes the variable constant and cannot be changed.
– Samuel
Jan 2 '09 at 22:39
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How to read the mode field of git-ls-tree's output
...he last 3 oct digits are file mode, but what are the first 3 digits for?
I can't find it out in git user's manual.
2 Answer...
What is database pooling?
...nection pooling is a method used to keep database connections open so they can be reused by others.
Typically, opening a database connection is an expensive operation, especially if the database is remote. You have to open up network sessions, authenticate, have authorisation checked, and so on. Po...
How to use XPath contains() here?
...ntains() examples around here, but nothing that uses an AND operator. I can't get this to work:
5 Answers
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Instance variable: self vs @
...always reports its age 10 years younger than it actually is. Or more practically, a PersistentPerson class might lazily read that data from a persistent store, cache all its persistent data in a hash.
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SVN (Subversion) Problem “File is scheduled for addition, but is missing” - Using Versions
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If you delete the file before the commit, svn has it in its records (because you added it) but cannot send it to the repository because the file no longer exist.
So either you want to save the file in the repository and then delete it from your working copy: In this case try to get your file ba...
How to remove a field from params[:something]
...tract! (has the ! bang operator) will modify the original so use with more care!
Original Answer
You can remove a key/value pair from a Hash using Hash#delete:
params.delete :company
If it's contained in params[:user], then you'd use this:
params[:user].delete :company
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How to pass argument to Makefile from command line?
...@ is an automatic variable for the name of the target of the rule, in this case "action".
filter-out is a function that removes some elements from a list. So $(filter-out bar, foo bar baz) returns foo baz (it can be more subtle, but we don't need subtlety here).
Put these together and $(filter-out...
What is the meaning of the prefix N in T-SQL statements and when should I use it?
...d use N only when i am using following datatypes CHAR, VARCHAR or TEXT?? because ` NCHAR, NVARCHAR or NTEXT ` are inherently store UNICODE i do not require to add it seperatly ....does it true?
– Pritesh
Aug 4 '12 at 11:23
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