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How to run a single test from a rails test suite?
...st, use the following command from your rails project's main directory:
ruby -I test test/unit/my_model_test.rb -n test_name
This runs a single test named "name", defined in the MyModelTest class in the specified file. The test_name is formed by taking the test name, prepending it with the word ...
How can I make space between two buttons in same div?
What is the best way to horizontally space Bootstrap buttons?
12 Answers
12
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What does “=>” mean in PHP?
...ve's pass is: apassword"
// "steve's pass is: secr3t"
Note that this can be used for numerically indexed arrays too.
Example:
$foo = array('car', 'truck', 'van', 'bike', 'rickshaw');
foreach ($foo as $i => $type) {
echo "{$i}: {$type}\n";
}
// prints:
// 0: car
// 1: truck
// 2: van
// 3:...
In java how to get substring from a string till a character c?
I have a string (which is basically a file name following a naming convention) abc.def.ghi
9 Answers
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How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...he explanatory text.
Unlike the solutions for 9.4 and older that are given below, this feature works with multiple conflicting rows and it doesn't require exclusive locking or a retry loop.
The commit adding the feature is here and the discussion around its development is here.
If you're on 9.5 and...
Diff files present in two different directories
...es with the same list of files. I need to compare all the files present in both the directories using the diff command. Is there a simple command line option to do it, or do I have to write a shell script to get the file listing and then iterate through them?
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MySQL ON vs USING?
In a MySQL JOIN , what is the difference between ON and USING() ? As far as I can tell, USING() is just more convenient syntax, whereas ON allows a little more flexibility when the column names are not identical. However, that difference is so minor, you'd think they'd just do away with USI...
When to use ' (or quote) in Lisp?
After making it through the major parts of an introductory Lisp book, I still couldn't understand what the special operator (quote) (or equivalent ' ) function does, yet this has been all over Lisp code that I've seen.
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Archives not showing up in Organizer for Xcode 4
... to a single answer)
Try one of the following (or all)
Instead of using Build For -> Archive, in the product menu just use archive. It will show up then.
In the scheme editor, edit the scheme and go to the Archive tab, make sure the check box for show in Organizer is checked.
In the archive ta...
Generate JSON string from NSDictionary in iOS
I have a dictionary I need to generate a JSON string by using dictionary . Is it possible to convert it? Can you guys please help on this?
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