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Where do I use delegates? [closed]
...situations where you need to execute a particular action, but you don’t know in
advance which method, or even which object, you’ll want to call upon
to execute it.
For Example: A button might not know which object or objects need to be notified. Rather than wiring the button to a particular
ob...
How to send a custom http status message in node / express?
...ype = Object.create(Error);
JSONError.prototype.constructor = JSONError;
Now, when I want to throw an Error in the code, I do:
var err = new JSONError(404, 'Uh oh! Can't find something');
next(err);
Going back to the custom error handling middleware, I modify it to:
app.use(function(err, req, ...
Passing route control with optional parameter after root in express?
...after in URL construction, I gave a '?' symbol after batchNo '/:batchNo?'
Now I can call with only categoryId and productId or with all three-parameter.
http://127.0.0.1:3000/api/v1/tours/5/10
//or
http://127.0.0.1:3000/api/v1/tours/5/10/8987
...
Using PowerShell to write a file in UTF-8 without the BOM
...
The proper way as of now is to use a solution recommended by @Roman Kuzmin in comments to @M. Dudley answer:
[IO.File]::WriteAllLines($filename, $content)
(I've also shortened it a bit by stripping unnecessary System namespace clarification - ...
How to clear the canvas for redrawing
...perimenting with composite operations and drawing images on the canvas I'm now trying to remove images and compositing. How do I do this?
...
How would I extract a single file (or changes to a file) from a git stash?
I'd like to know if it is possible to extract a single file or diff of a file from a git stash without popping the stash changeset off.
...
What's the best way to do a backwards loop in C/C#/C++?
....
Instead of doing
(sizeof a / sizeof *a)
Change your code so that it now does
(sizeof array_size(a))
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How to copy a file to multiple directories using the gnu cp command
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Thanks for the answer! Now that I think about it a bit more, without extra flags (which do not exist) cp will not know what is the source and what is the DEST dir.
– Tom Feiner
Oct 12 '08 at 16:39
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Return a `struct` from a function in C
...function body as soon as the amount of memory allocated for a value isn't known at compile time. It is for structs, so C functions have no problem returning them.
– reinierpost
Feb 1 '15 at 19:11
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How can you iterate over the elements of an std::tuple?
... overloads for every type the tuple might contain. This works best if you know all the tuple elements will share a common base class or something similar.
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