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advantage of tap method in ruby
...e!
they would have to follow all the three lines and then recognize that it is just creating an instance named user.
If it were:
user = User.new.tap do |u|
u.username = "foobar"
u.save!
end
then that would be immediately clear. A reader would not have to read what is inside the block to kn...
CSS: Animation vs. Transition
So, I understand how to perform both CSS3 transitions and animations . What is not clear, and I've googled, is when to use which.
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What is the at sign (@) in a batch file and what does it do?
One remotely familiar with windows/dos batch scripting will recognize this line:
2 Answers
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Why NSUserDefaults failed to save NSMutableDictionary in iOS?
...encode the root object (NSArray object) using NSKeyedArchiver, which ends with NSData. Then use UserDefaults save the NSData.
When I need the data, I read out the NSData, and use NSKeyedUnarchiver to convert NSData back to the object.
It is a little cumbersome, because i need to convert to/from ...
Typing Enter/Return key using Python and Selenium?
... I'm trying to test (not my own code so I can't modify) doesn't have a Submit button. When working with it manually, I just type ENTER or RETURN . I need to know how to do that with the Selenium type command as there is no button to click.
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What should I name a table that maps two tables together? [closed]
...cience: cache invalidation
and naming things-- Phil Karlton
Coming up with a good name for a table that represents a many-to-many relationship makes the relationship easier to read and understand. Sometimes finding a great name is not trivial but usually it is worth to spend some time thinking a...
How can I run MongoDB as a Windows service?
How can I set up MongoDB so it can run as a Windows service?
29 Answers
29
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Why does fatal error “LNK1104: cannot open file 'C:\Program.obj'” occur when I compile a C++ project
I've created a new C++ project in Visual Studio 2008. No code has been written yet; Only project settings have been changed.
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commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
...ajax> , the action , actionListener or listener method associated with the tag are simply not being invoked. Or, the bean properties are not updated with submitted UIInput values.
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How to skip to next iteration in jQuery.each() util?
I'm trying to iterate through an array of elements. jQuery's documentation says:
6 Answers
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