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capturing self strongly in this block is likely to lead to a retain cycle
...h with unrecognized selector to a trash which is contains vcToGo_ variable now. Try to control it.
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How to completely remove an issue from GitHub?
...
Update Nov 2018: You now can delete your issues!
See "Github - remove issues entered in error"
At May 2018, original answer:
Three 8 years later, and closing issues remains the answer (still no deletion possible).
See "The Ghost of Issues P...
Rspec doesn't see my model Class. uninitialized constant error
... versions of RSpec move some stuff out of the spec/spec_helper.rb file, so now you also get a spec/rails_helper.rb file. If you run rails generate rspec:install, this is what it produces (rspec-rails 3.0.1, rails 4.1.1). Turns out the rails_helper.rb file contains some similar code to yours and shou...
How do you rotate a two dimensional array?
...eed this information in our function to rotate a matrix, so let’s add it now:
def rotate(matrix):
size = len(matrix)
# Rotatable layers only.
layer_count = size / 2
Now we know what layers are and how to determine the number of layers that actually need rotating, how do we isolate a...
Why doesn't print work in a lambda?
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Now I see why it was such a big deal to make it a function. Wanted to use print as a default kwarg and this fixed it. Thanks.
– Thomas Dignan
Jul 3 '12 at 7:30
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How to use npm with node.exe?
...ually create the directory/folder C:\Users\kevitt\AppData\Roaming\npm just now before I could install my first package.
– Kenny Evitt
Aug 14 '14 at 14:33
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How should I store GUID in MySQL tables?
...tes with an Integer. Since he put that challenge out there to me I thought now was a good time to mention it. That being said...
You can store a guid as a CHAR(16) binary if you want to make the most optimal use of storage space.
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How can I format a nullable DateTime with ToString()?
...alue property, and not on the dt2 object itself.
DateTime? dt2 = DateTime.Now;
Console.WriteLine(dt2.HasValue ? dt2.Value.ToString("yyyy-MM-dd hh:mm:ss") : "[N/A]");
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How can I test what my readme.md file will look like before committing to github?
...Edit, as pointed out by @Aaron or Dillinger since Notepag seems to be down now. Personally I use Dillinger since it just works and saves all my documents in my browser's local database.
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How do I automatically update a timestamp in PostgreSQL
...update_modified_column()
RETURNS TRIGGER AS $$
BEGIN
NEW.modified = now();
RETURN NEW;
END;
$$ language 'plpgsql';
Apply the trigger like this:
CREATE TRIGGER update_customer_modtime BEFORE UPDATE ON customer FOR EACH ROW EXECUTE PROCEDURE update_modified_column();
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