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Should commit messages be written in present or past tense? [closed]
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I think of these messages as they appear to other developers. They don't yet have the changes applied, and there is the implicit question, "what will applying this changeset/patch do?" It will "Fix the XXX bug in YYY"!
For other verbs writing them as a command seems more natural, and works...
In Python, what happens when you import inside of a function? [duplicate]
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Does it re-import every time the function is run?
No; or rather, Python modules are essentially cached every time they are imported, so importing a second (or third, or fourth...) time doesn't actually force them to go thro...
What is Domain Driven Design (DDD)? [closed]
I keep seeing DDD (Domain Driven Design) being used a lot in articles - I have read the Wikipedia entry about DDD but still can't figure out what it actually is and how I would go about implementing it in creating my sites?
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How do I check if a string contains another string in Objective-C?
... ([string rangeOfString:@"bla"].location == NSNotFound) {
NSLog(@"string does not contain bla");
} else {
NSLog(@"string contains bla!");
}
The key is noticing that rangeOfString: returns an NSRange struct, and the documentation says that it returns the struct {NSNotFound, 0} if the "haystack"...
How do I print out the contents of an object in Rails for easy debugging?
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I generally first try .inspect, if that doesn't give me what I want, I'll switch to .to_yaml.
class User
attr_accessor :name, :age
end
user = User.new
user.name = "John Smith"
user.age = 30
puts user.inspect
#=> #<User:0x423270c @name="John Smith", @age=...
MySQL SELECT only not null values
Is it possible to do a select statement that takes only NOT NULL values?
9 Answers
9
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What exactly are DLL files, and how do they work?
How exactly do DLL files work? There seems to be an awful lot of them, but I don't know what they are or how they work.
9 A...
How do I detect whether a Python variable is a function?
...u can read the discussion here: http://bugs.python.org/issue10518. You can do this with:
callable(obj)
If this is for Python 3.x but before 3.2, check if the object has a __call__ attribute. You can do this with:
hasattr(obj, '__call__')
The oft-suggested types.FunctionTypes approach is not co...
How do I pass multiple parameters into a function in PowerShell?
... I prefer using the paranthesis and comma separated.. is it possible to do this in powershell?
– sam yi
Mar 19 '14 at 4:27
9
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How do I create a foreign key in SQL Server?
... A very important point to note that is creating the foreign key does not create an index. Joining another table to this one could result in an extremely slow query.
– Rocklan
Sep 5 '14 at 0:13
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