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How do you assert that a certain exception is thrown in JUnit 4 tests?
...pect an exception only somewhere in your code, and not a blanket like this one.
– Oh Chin Boon
Jun 27 '11 at 14:50
4
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It is more efficient to use if-return-return or if-else-return?
...of the current function, the two forms are equivalent (although the second one is arguably more readable than the first).
The efficiency of both forms is comparable, the underlying machine code has to perform a jump if the if condition is false anyway.
Note that Python supports a syntax that allow...
Swift: Testing optionals for nil
...
does not conform to protocol 'BooleanType.Protocol'
You have to use one of these forms:
if xyz != nil {
// Do something using `xyz`.
}
if let xy = xyz {
// Do something using `xy`.
}
share
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Explain ExtJS 4 event handling
... default.
For widgets there are two ways of assigning handlers. The first one - is to use on method (or addListener). Let's for example create Button widget and assign click event to it. First of all you should check event's docs for handler's arguments:
click( Ext.button.Button this, Event e, ...
How can I add a custom HTTP header to ajax request with js or jQuery?
Does anyone know how to add or create a custom HTTP header using JavaScript or jQuery?
9 Answers
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How would I run an async Task method synchronously?
...ynchronizationContext : SynchronizationContext
{
private bool done;
public Exception InnerException { get; set; }
readonly AutoResetEvent workItemsWaiting = new AutoResetEvent(false);
readonly Queue<Tuple<SendOrPostCallback, object>> items =
...
What exactly does git's “rebase --preserve-merges” do (and why?)
...ase, git with --preserve-merges first identifies a list of commits made in one part of the commit graph, and then replays those commits on top of another part. The differences with --preserve-merges concern which commits are selected for replay and how that replaying works for merge commits.
To be ...
Check if list contains any of another list
...Why O(n^2)? Isn't it O(n*m) as we are talking abount two variables and not one? Since m (the parametes) are a constant, it's the same as O(n). I don't see how intersect should be much faster here? But agreed, Intersect has the potential to be faster, but is not guaranteed.
– Sq...
Overwrite or override
... issue. Couldn't find a similar question here so I decided to create a new one.
5 Answers
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How do you copy and paste into Git Bash
...
@AntiGameZ undo can be done with Ctrl-_. I believe this is all from readline utility, which emulates Emacs, the One True Editor.
– Brady Trainor
Feb 11 '14 at 1:35
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