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SQL/mysql - Select distinct/UNIQUE but return all columns?
...ht be ... today. As you may notice, this answer is almost 7 years old, a point in time where that wasn't the case insofar as I can recollect from back when I was active. You're welcome to retag and/or edit the answer if you feel it's necessary.
– Denis de Bernardy
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iterating over each character of a String in ruby 1.8.6 (each_char)
... in an ASCII string:
"ABCDEFG".each_byte do |i|
puts i.chr # Fixnum#chr converts any number to the ASCII char it represents
end
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Decorators with parameters?
...ction with a signature different from the one in the definition. As you point out, it would fit pretty well actually - it's pretty much analogous to how a class method is called. To make it more clear, you could have something like decorator(self_func, param1, ...) convention. But note: I'm not a...
Exception thrown in NSOrderedSet generated accessors
... @DerekH isEqualToSet is a method only NSSet has, so my guess is you've converted, created, or are treating a pointer as an NSArray before passing back to the NSManagedObject, which should if any reason be calling isEqualToOrderedSet to determine if the set needs to even change or be left as is.
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Why use String.Format? [duplicate]
...fic number of + operators all specified in a single expression it will be converted, by the compiler, into a single call to string.Concat, and there will not be any intermediate strings created. Using a StringBuilder would in fact hurt performance, not help it, since Concat can create an internal ...
How to get the date from jQuery UI datepicker
...st parameter is in this case the selected Date as String. Use parseDate to convert it to a JS Date Object.
See http://docs.jquery.com/UI/Datepicker for the full jQuery UI DatePicker reference.
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MySQL: how to get the difference between two timestamps in seconds
...nd the expression.
Alternatively, you can use TIMEDIFF(ts1, ts2) and then convert the time result to seconds with TIME_TO_SEC().
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How do I declare an array of weak references in Swift?
...hould not be a weak reference - its elements should be. I think Cocoa NSPointerArray offers a non-typesafe version of this.
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How to update maven repository in Eclipse?
...ies
After "BUILD SUCCESS", Right-click on your project then Configure > Convert Maven Project
Note: Maven update snapshot sometimes stops working if you use anything else i.e. eclipse:eclipse or Spring Tooling
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Why can tuples contain mutable items?
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One reason is that there is no general way in Python to convert a mutable type into an immutable one (see the rejected PEP 351, and the linked discussion for why it was rejected). Thus, it would be impossible to put various types of objects in tuples if it had this restriction, in...