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How do I manage MongoDB connections in a Node.js web application?
... ObjectID(req.params.id);
const user = await db.collection('user').findOne({ _id: id }, {
email: 1,
firstName: 1,
lastName: 1
});
if (user) {
user.id = req.params.id;
res.send(user);
} else {
res.sendStatus(404);
}
} catch (err) {
next(e...
How to retrieve a user environment variable in CMake (Windows)
... aware that this may only work the first time. If CMake re-configures with one of the consecutive builds (you just call e.g. make, one CMakeLists.txt was changed and CMake runs through the generation process again), the user defined environment variable may not be there anymore (in comparison to sys...
How to reverse a singly linked list using only two pointers?
...ere is no leak, What is the need of declaring next every time, as aks mentioned, "it would be correct if you create the 'next' pointer before the while loop and just make the assignment 'next = root->next' inside the while loop.", Isn't it?
– GeekyJ
Jun 20 '...
Equivalent of typedef in C#
... equivalent in C#, or someway to get some sort of similar behaviour? I've done some googling, but everywhere I look seems to be negative. Currently I have a situation similar to the following:
...
Fetch frame count with ffmpeg
Does anyone know how to fetch the number of total frames from a video file using ffmpeg? The render output of ffmpeg shows the current frame and I need the frame count to calculate the progress in percent.
...
Different types of thread-safe Sets in Java
...y. This means that no two methods of the set can be executed concurrently (one will block until the other finishes) - this is thread-safe, but you will not have concurrency if multiple threads are really using the set. If you use the iterator, you usually still need to synchronize externally to avoi...
How to POST raw whole JSON in the body of a Retrofit request?
...een asked before but no it was not definitively answered. How exactly does one post raw whole JSON inside the body of a Retrofit request?
...
How do I adjust the anchor point of a CALayer, when Auto Layout is being used?
...; they are just a to-do list. layoutSubviews is where the to-do list gets done. And it does it by setting frames.
I can't help regarding this as a bug. If I apply this transform to a view:
v.transform = CGAffineTransformMakeScale(0.5,0.5);
I expect to see the view appear with its center in the s...
How do I reattach to a detached mosh session?
...ore -D checkpoint --shell-job
And, there it is. Your mosh client is back.
One thing to note, however, is that if your laptop reboots (which is the whole point of what we're trying to protect against), mosh uses a monotonic clock to track time on the client side, which doesn't work across reboots. T...
How to get the python.exe location programmatically? [duplicate]
...it would point to the executable for the app, and not the python.exe. Someone would have to confirm though.
– FogleBird
Apr 14 '09 at 23:53
1
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