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LINQ, Where() vs FindAll()
..., it's not a LINQ extension method like Where. The LINQ extension methods work on any type that implements IEnumerable, whereas FindAll can only be used on List<T> instances (or instances of classes that inherit from it, of course).
Additionally, they differ in actual purpose. Where returns a...
Create a completed Task
...sk<Result> StartSomeTask() and happen to know the result already before the method is called. How do I create a Task<T> that has already completed?
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How to unmount a busy device
...cognize shared drives (from a SQL table) and mount them in a special directory where all users can access them.
11 Answers...
How do I undo 'git add' before commit?
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You can undo git add before commit with
git reset <file>
which will remove it from the current index (the "about to be committed" list) without changing anything else.
You can use
git reset
without any file name to unstage all due changes. T...
Is it feasible to compile Python to machine code?
...ere is Psyco - Python JIT if only speedup is needed. But IMHO this is not worth the effort. For speed-critical parts of code best solution would be to write them as C/C++ extensions.
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improv...
UIGestureRecognizer on UIImageView
...= [[UIPinchGestureRecognizer alloc]
initWithTarget:self action:@selector(handlePinch:)];
pgr.delegate = self;
[imageView addGestureRecognizer:pgr];
[pgr release];
:
:
- (void)handlePinch:(UIPinchGestureRecognizer *)pinchGestureRecognizer
{
//handle pinch...
}
...
What are the use(s) for tags in Go?
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A tag for a field allows you to attach meta-information to the field which can be acquired using reflection. Usually it is used to provide transformation info on how a struct field is encoded to or decoded from another format (or st...
What is the at sign (@) in a batch file and what does it do?
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At symbol - @
The @ symbol tells the command processor to be less verbose; to only show the output of the command without showing it being executed or any prompts associated with the execution. When used it is prepended to the beginning of the command, it is not necessary to l...
Does Python optimize tail recursion?
I have the following piece of code which fails with the following error:
6 Answers
6
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Python string.join(list) on object array rather than string array
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You could use a list comprehension or a generator expression instead:
', '.join([str(x) for x in list]) # list comprehension
', '.join(str(x) for x in list) # generator expression
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