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How to sleep for five seconds in a batch file/cmd [duplicate]
Windows's Snipping tool can capture the screen, but sometimes I want to capture the screen after five seconds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.)
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Get key by value in dictionary
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I don't agree... agf's answer below is more constructive. A perfectly reasonable use case is not "unintended" (list comprehension fits such a use case anyway). A dict can be for multiple things at different times; keys and valu...
Multiple arguments vs. options object
...http", false, 150, 90, null, true, 18);
Completely unreadable unless you do some research. On the other hand, this code reads well:
initiateTransferProtocol({
"protocol": "http",
"sync": false,
"delayBetweenRetries": 150,
"randomVarianceBetweenRetries": 90,
"retryCallback": null,
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How to Deal with Temporary NSManagedObject instances?
I need to create NSManagedObject instances, do some stuff with them and then trash them or store to sqlite db. The problem is, I cannot create instances of NSManagedObject unconnected to NSManagedObjectContext and this means I have to clear up somehow after I decide that I don't need some of ...
linux: kill background task
How do I kill the last spawned background task in linux?
8 Answers
8
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Installing python module within code
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One issue with this is that, for novice users on Windows, python and pip are not always on their PATH, and so a .py file that could be double-clicked would be quite convenient, whereas a "pip install xxx" comment can be quite tricky.
– jdpipe
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How to reverse a singly linked list using only two pointers?
...his is as simple as it gets, and there's no fundamentally-different way of doing it. This algorithm is already O(n) time, and you can't get any faster than that, as you must modify every node.
It looks like your code is on the right track, but it's not quite working in the form above. Here's a wo...
Align image in center and middle within div
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Following doesn't work. What's the mistake i am doing. <html> <head> <style> #over img { display: block; margin-left: auto; margin-right: auto; } </style> </head> <body> <div id="over"...
Installing specific package versions with pip
... to install the older version? I found an article stating that this should do it:
11 Answers
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How to create a numpy array of all True or all False?
In Python, how do I create a numpy array of arbitrary shape filled with all True or all False?
7 Answers
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