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How to disable textarea resizing?
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322
You can use css
disable all
textarea { resize: none; }
only vertical resize
textarea { r...
How does Rails keep track of which migrations have run for a database?
...g row from schema_migrations.
For example, running a migration file named 20120620193144_create_users.rb will insert a new row with a version of 20120620193144 into the schema_migrations table.
You are free at any point to introduce migrations with earlier versions. Rails will always run any new m...
Get environment variable value in Dockerfile
... request_domain
or if you'd prefer a default value:
ARG request_domain=127.0.0.1
Now you can reference this variable inside your Dockerfile:
ENV request_domain=$request_domain
then you will build your container like so:
$ docker build --build-arg request_domain=mydomain Dockerfile
Note 1...
What does JVM flag CMSClassUnloadingEnabled actually do?
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219
Update This answer is relevant for Java 5-7, Java 8 has this fixed: https://blogs.oracle.com/p...
How can I put a database under git (version control)?
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25 Answers
25
Active
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pdftk compression option
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122
I had the same problem and found two different solutions (see this thread for more details). Bo...
What is the difference between “INNER JOIN” and “OUTER JOIN”?
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27 Answers
27
Active
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how to use sed, awk, or gawk to print only what is matched?
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2
...and the "p" option to print the the match, which I didn't know about either. Thanks again.
– Stéphane
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Get Selected index of UITableView
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216
NSIndexPath *selectedIndexPath = [tableView indexPathForSelectedRow];
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Git: “Not currently on any branch.” Is there an easy way to get back on a branch, while keeping the
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216
If you have not committed:
git stash
git checkout some-branch
git stash pop
If you have com...