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How to produce a range with step n in bash? (generate a sequence of numbers with increments)
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I'd do
for i in `seq 0 2 10`; do echo $i; done
(though of course seq 0 2 10 will produce the same output on its own).
Note that seq allows floating-point numbers (e.g., seq .5 .25 3.5) but bash's brace expansion only allows intege...
What is a C++ delegate?
... delegate in C++? What are they, how are they used and what are they used for?
6 Answers
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How do I remove documents using Node.js Mongoose?
The above doesn't seem to work. The records are still there.
22 Answers
22
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What is the difference between a URI, a URL and a URN?
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From RFC 3986:
A URI can be further classified as a locator, a name, or both. The
term "Uniform Resource Locator" (URL) refers to the subset of URIs
that, in addition to identifying a resource, provide a means of
locating the resource by describing its primary acces...
Loading and parsing a JSON file with multiple JSON objects
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You have a JSON Lines format text file. You need to parse your file line by line:
import json
data = []
with open('file') as f:
for line in f:
data.append(json.loads(line))
Each line contains valid JSON, but as a whole, it is not a ...
What does pylint's “Too few public methods” message mean
I'm running pylint on some code, and receiving the error "Too few public methods (0/2)". What does this message mean? The pylint docs are not helpful:
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In Python, what happens when you import inside of a function? [duplicate]
What are the pros and cons of importing a Python module and/or function inside of a function, with respect to efficiency of speed and of memory?
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UITableView with fixed section headers
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There's a couple possible explanations for this. One important note is that the headers will only remain fixed for cells within its section. So, if you have a header in section 0, it will not remain fixed for cells in section 1. Another possible explanation is that...
Where in a virtualenv does the custom code go?
What sort of directory structure should one follow when using virtualenv ? For instance, if I were building a WSGI application and created a virtualenv called foobar I would start with a directory structure like:
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What is referential transparency?
...nts and arguments based on the methods of logic and mathematics. In other words, it is the closest subject outside computer science to what we call programming language semantics. The philosopher Willard Quine was responsible for initiating the concept of referential transparency, but it was also i...