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How to write a switch statement in Ruby
... so there is no need to end each when with a break. You can also specify multiple matches in a single when clause like when "foo", "bar".
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Change Default Scrolling Behavior of UITableView Section Header
... CGFloat sectionHeaderHeight = 40;
if (scrollView.contentOffset.y<=sectionHeaderHeight&&scrollView.contentOffset.y>=0) {
scrollView.contentInset = UIEdgeInsetsMake(-scrollView.contentOffset.y, 0, 0, 0);
} else if (scrollView.contentOffset.y>=sectionHeaderHeight) {...
Can I change the size of UIActivityIndicator?
...ain elements appear in a certain size and that they mean specific things. Altering the standard appearance alters the interface grammar and confuses the user.
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Are negative array indexes allowed in C?
...ointer to get UB. Merely computing somearray-2 is undefined unless the result is in the range from the start of somearray to 1 past its end.
– RBerteig
Aug 13 '10 at 9:12
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Why do I need to override the equals and hashCode methods in Java?
...shCode() in every class that overrides equals(). Failure to do so will result in a violation of the general contract for Object.hashCode(), which will prevent your class from functioning properly in conjunction with all hash-based collections, including HashMap, HashSet, and Hashtable.
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LINQ: When to use SingleOrDefault vs. FirstOrDefault() with filtering criteria
Consider the IEnumerable extension methods SingleOrDefault() and FirstOrDefault()
15 Answers
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Sublime Text 2: Trim trailing white space on demand
...ding, open "Preferences / Key Bindings - User" and add:
{ "keys": ["ctrl+alt+t"], "command": "delete_trailing_spaces" }
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See :hover state in Chrome Developer Tools
... force element state (from the elements pane) on other elements (not just <a> elements) now.
– Travis Northcutt
Mar 19 '14 at 15:58
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An async/await example that causes a deadlock
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Fact 1: GetDataAsync().Result; will run when the task returned by GetDataAsync() completes, in the meantime it blocks the UI thread
Fact 2: The continuation of the await (return result.ToString()) is queued to the UI thread for execution
Fact 3: The ta...
ExecuteReader requires an open and available Connection. The connection's current state is Connectin
...P.NET online, I will get the following when two or more people connect simultaneously:
2 Answers
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