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What does bundle exec rake mean?
...does bundle exec rake db:migrate mean? Or just bundle exec rake <command> in general?
7 Answers
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How should I validate an e-mail address?
...chnique for validating an e-mail address (e.g. from a user input field) in Android? org.apache.commons.validator.routines.EmailValidator doesn't seem to be available. Are there any other libraries doing this which are included in Android already or would I have to use RegExp?
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Dump a NumPy array into a csv file
...there a way to dump a NumPy array into a CSV file? I have a 2D NumPy array and need to dump it in human-readable format.
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Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED
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After you install redis, type from terminal:
redis-server
and you'll have redis running
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Change SQLite database mode to read-write
...atabase open at the same time (see the FAQ).
There is a plugin to compress and encrypt the database. It doesn't allow to modify the DB.
Lastly, another FAQ says: "Make sure that the directory containing the database file is also writable to the user executing the CGI script." I think this is because...
Error to run Android Studio
I have installed Android Studio and I followed all steps described here
17 Answers
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“Unsafe JavaScript attempt to access frame with URL…” error being continuously generated in Chrome w
...uests during testing by running chrome with the --disable-web-security command line option. This should probably get rid of the error (and allow FB to spy on your testing ;)
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No increment operator (++) in Ruby? [duplicate]
...now
" (archive, mirror)
That explains it better than I ever could.
EDIT: and the reason from the language author himself (source):
++ and -- are NOT reserved operator in Ruby.
C's increment/decrement operators are in fact hidden assignment. They affect variables, not objects. You cannot a...
With ng-bind-html-unsafe removed, how do I inject HTML?
I'm trying to use $sanitize provider and the ng-bind-htm-unsafe directive to allow my controller to inject HTML into a DIV.
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How does one generate a random number in Apple's Swift language?
I realize the Swift book provided an implementation of a random number generator. Is the best practice to copy and paste this implementation in one's own program? Or is there a library that does this that we can use now?
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