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No secret option provided to Rack::Session::Cookie warning?
...a different way than intended. It should be ok to just ignore this warning for now until there is a final agreement on how to handle this issue and a fix in place.
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Using a constant NSString as the key for NSUserDefaults
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It is a subtle difference. The compiler warning happens because setObject:forKey: is declared as follows:
- (void)setObject:(id)value forKey:(NSString *)defaultName;
It is expecting the defaultName argument to be of type NSString *. When you instead pass in a pointer to a constant, you've given ...
What is the difference between t.belongs_to and t.references in rails?
...ut belongs_to in your migrations when appropriate, and stick to references for other sorts of associations.
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How can I determine the type of an HTML element in JavaScript?
...pt. It has the ID, but the element itself could be a <div> , a <form> field, a <fieldset> , etc. How can I achieve this?
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In Vim, I'd like to go back a word. The opposite of `w`
When you're using vim, you can move forward word by word with w . How do I go backwards?
4 Answers
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Iterating a JavaScript object's properties using jQuery
Is there a jQuery way to perform iteration over an object's members, such as in:
4 Answers
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PostgreSQL: Can you create an index in the CREATE TABLE definition?
... index in the CREATE TABLE syntax. PostgreSQL does however create an index for unique constraints and primary keys by default, as described in this note:
PostgreSQL automatically creates an index for each unique constraint and primary key constraint to enforce uniqueness.
Other than that, if y...
Can you run GUI applications in a Docker container?
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This will create a Docker container running VNC with the password 1234:
For Docker version 18 or newer:
docker run -p 5900:5900 -e HOME=/ creack/firefox-vnc x11vnc -forever -usepw -create
For Docker version 1.3 or newer:
docker run -p 5900 -e HOME=/ creack/firefox-vnc x11vnc -forever -usepw -...
Pure virtual destructor in C++
... have an implementation, undefined behavior will ensue. On one popular platform, that will invoke the purecall handler and crash.
Edit: fixing the declaration to be more conformant, compiled with http://www.comeaucomputing.com/tryitout/
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Send inline image in email
...nt: " + data.client_id + " Has Sent You A Screenshot";
mail.Body = String.Format(
"<h3>Client: " + data.client_id + " Has Sent You A Screenshot</h3>" +
@"<img src=""cid:{0}"" />", att.ContentId);
mail.IsBodyHtml = true;
mail.Attachments.Add(att);
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