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Adding a column to an existing table in a Rails migration
I have a Users model which needs an :email column (I forgot to add that column during the initial scaffold).
11 Answers...
Tar archiving that takes input from a list of files
I have a file that contain list of files I want to archive with tar.
Let's call it mylist.txt
6 Answers
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Mongoose populate after save
I cannot manually or automatically populate the creator field on a newly saved object ... the only way I can find is to re-query for the objects I already have which I would hate to do.
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Javascript reduce() on Object
There is nice Array method reduce() to get one value from the Array. Example:
13 Answers
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What is that “total” in the very first line after ls -l? [closed]
What is the total in the output of ls -l ?
4 Answers
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How to get a list of installed android applications and pick one to run
I asked a similar question to this earlier this week but I'm still not understanding how to get a list of all installed applications and then pick one to run.
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How to get a string after a specific substring?
How can I get a string after a specific substring?
9 Answers
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Get last element of Stream/List in a one-liner
How can I get the last element of a stream or list in the following code?
6 Answers
6
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Check variable equality against a list of values
I'm checking a variable, say foo , for equality to a number of values. For example,
13 Answers
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Linq: adding conditions to the where clause conditionally
I have a query like this
9 Answers
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