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How to get subarray from array?
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What K_7 said; most especially, monkey-patching the Builtins (Object, Array, Promise, etc) is very naughty. See the famous example of MooTools forcing a rename of the proposed native Array.prototype.contains to Array.prototype.incl...
How to run a single RSpec test?
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Usually I do:
rspec ./spec/controllers/groups_controller_spec.rb:42
Where 42 represents the line of the test I want to run.
EDIT1:
You could also use tags. See here.
EDIT 2:
Try:
bundle exec rspec ./spec/controllers/gro...
switch case statement error: case expressions must be constant expression
...instead of an if-else:
private enum LayoutElement {
NONE(-1),
PLAY_BUTTON(R.id.playbtn),
STOP_BUTTON(R.id.stopbtn),
MENU_BUTTON(R.id.btnmenu);
private static class _ {
static SparseArray<LayoutElement> elements = new SparseArray<LayoutElement>();
}
...
PostgreSQL database default location on Linux
What is the default directory where PostgreSQL will keep all databases on Linux?
8 Answers
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How to remove files that are listed in the .gitignore but still on the repository?
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You can remove them from the repository manually:
git rm --cached file1 file2 dir/file3
Or, if you have a lot of files:
git rm --cached `git ls-files -i --exclude-from=.gitignore`
But this doesn't seem to work in Git Bash on Windows. It produces an error messag...
What is the convention for word separator in Java package names?
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Packages
The prefix of a unique package name is always written in all-lowercase ASCII letters and should be one of the top-level domain names, currently com, edu, gov, mil, net, org, or one of the English two-letter codes identifying countries as specified in ISO Standard 3166, 1981.
S...
Sequence contains no elements?
...boxes for the title and content, the ID and date aren't put on the page at all. Could this be the reason for it passing them as null\new?
– Andy Hunt
Aug 24 '09 at 19:43
2
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How to check if a String contains another String in a case insensitive manner in Java?
...tains is case sensitive. You can use java.util.regex.Pattern with the CASE_INSENSITIVE flag for case insensitive matching:
Pattern.compile(Pattern.quote(wantedStr), Pattern.CASE_INSENSITIVE).matcher(source).find();
EDIT: If s2 contains regex special characters (of which there are many) it's impo...
How do I access my SSH public key?
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cat ~/.ssh/id_rsa.pub or cat ~/.ssh/id_dsa.pub
You can list all the public keys you have by doing:
$ ls ~/.ssh/*.pub
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How to `go test` all tests in my project?
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This should run all tests in current directory and all of its subdirectories:
$ go test ./...
This should run all tests for given specific directories:
$ go test ./tests/... ./unit-tests/... ./my-packages/...
This should run all tests ...