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Optimal number of threads per core
Let's say I have a 4-core CPU, and I want to run some process in the minimum amount of time. The process is ideally parallelizable, so I can run chunks of it on an infinite number of threads and each thread takes the same amount of time.
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Why {} + {} is NaN only on the client side? Why not in Node.js?
While [] + [] is an empty string, [] + {} is "[object Object]" , and {} + [] is 0 . Why is {} + {} NaN?
1 Answer
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Mongoimport of json file
I have a json file consisting of about 2000 records. Each record which will correspond to a document in the mongo database is formatted as follows:
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How to add a new row to an empty numpy array
Using standard Python arrays, I can do the following:
6 Answers
6
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How are people managing authentication in Go? [closed]
For those building RESTful APIs and JS front-end apps in Go, how are you managing authentication? Are you using any particular libraries or techniques?
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Removing duplicate rows in vi?
I have a text file that contains a long list of entries (one on each line). Some of these are duplicates, and I would like to know if it is possible (and if so, how) to remove any duplicates. I am interested in doing this from within vi/vim, if possible.
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A regex to match a substring that isn't followed by a certain other substring
I need a regex that will match blahfooblah but not blahfoobarblah
5 Answers
5
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How to make RatingBar to show five stars
I am following the standard example of how to add a RatingBar . To control the number of stars I tried to use android:numStars="5" . The problem is that the number of stars doesn't seem to do anything at all. In portrait-layout I get 6 stars and when I flip the phone I get about 10 stars. I tried ...
How to Parse Command Line Arguments in C++? [duplicate]
What is the best way of parsing command-line arguments in C++ if the program is specified
to be run like this:
10 Answers
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Multiple commands on same line
I've been trying to find something that will let me run multiple commands on the same line in Vim, akin to using semicolons to separate commands in *nix systems or & in Windows. Is there a way to do this?
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