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Why are C# 3.0 object initializer constructor parentheses optional?

It seems that the C# 3.0 object initializer syntax allows one to exclude the open/close pair of parentheses in the constructor when there is a parameterless constructor existing. Example: ...
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Adding a UILabel to a UIToolbar

I'm trying to add a label to my toolbar. Button works great, however when I add the label object, it crashes. Any ideas? 8 ...
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What's the difference between the data structure Tree and Graph?

Academically speaking, what's the essential difference between the data structure Tree and Graph? And how about the tree based search and Graph based search? ...
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Convert a 1D array to a 2D array in numpy

I want to convert a 1-dimensional array into a 2-dimensional array by specifying the number of columns in the 2D array. Something that would work like this: ...
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What rules does Pandas use to generate a view vs a copy?

I'm confused about the rules Pandas uses when deciding that a selection from a dataframe is a copy of the original dataframe, or a view on the original. ...
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Rebasing a Git merge commit

... There are two options here. One is to do an interactive rebase and edit the merge commit, redo the merge manually and continue the rebase. Another is to use the --rebase-merges option on git rebase, which is described as follows from the manual: By default, a rebase will simply dro...
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Trying to understand CMTime and CMTimeMake

... denominator, so it is 1/10 of a second, not 1 second. 2) The result will be like CMTimeMake(2, 10), which is 2/10ths of a second. share | improve this answer | follow ...
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“Use the new keyword if hiding was intended” warning

I have a warning at the bottom of my screen: 4 Answers 4 ...
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What is a “callback” in C and how are they implemented?

From the reading that I have done, Core Audio relies heavily on callbacks (and C++, but that's another story). 9 Answers ...
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What is SELF JOIN and when would you use it? [duplicate]

... don't understand self joins so a layman explanation with an example would be great. 5 Answers ...