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Creating NSData from NSString in Swift
...t with a valid HTTPBody , but I can't seem to get my string data (coming from a UITextField ) into a usable NSData object.
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Deleting all rows from Cassandra cql table [duplicate]
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To remove all rows from a CQL Table, you can use the TRUNCATE command:
TRUNCATE keyspace_name.table_name;
Or if you are already using the keyspace that contains your target table:
TRUNCATE table_name;
Important to note, but by default Cas...
Call a “local” function within module.exports from another function in module.exports?
How do you call a function from within another function in a module.exports declaration?
8 Answers
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How can I extract all values from a dictionary in Python?
... if isinstance(d, dict):
for v in d.values():
yield from get_all_values(v)
elif isinstance(d, list):
for v in d:
yield from get_all_values(v)
else:
yield d
An example:
d = {'a': 1, 'b': {'c': 2, 'd': [3, 4]}, 'e': [{'f': 5}, {'g': 6}]}
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Compute a confidence interval from sample data
...assumptions for both are that the sample (array a) was drawn independently from a normal distribution with unknown standard deviation (see MathWorld or Wikipedia).
For large sample size n, the sample mean is normally distributed, and one can calculate its confidence interval using st.norm.interval(...
How do I reference an existing branch from an issue in GitHub?
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Directly from GitHub:
References
Certain references are auto-linked:
SHA: be6a8cc1c1ecfe9489fb51e4869af15a13fc2cd2
User@SHA ref: mojombo@be6a8cc1c1ecfe9489fb51e4869af15a13fc2cd2
User/Project@SHA: mojombo/god@be6a8cc1c1ecfe9489fb51e4...
How to convert R Markdown to PDF?
...g.,
render("input.Rmd", "pdf_document")
Command-line:
When I run render from the command-line (e.g., using a makefile), I sometimes have issues with pandoc not being found. Presumably, it is not on the search path.
The following answer explains how to add pandoc to the R environment.
So for exam...
Is it possible to create a remote repo on GitHub from the CLI without opening browser?
...mand line. As you noted, GitHub doesn't allow shell access, etc., so aside from the GitHub API, the only way to create a repo is through GitHub's web interface.
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std::shared_ptr of this
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There is std::enable_shared_from_this just for this purpose. You inherit from it and you can call .shared_from_this() from inside the class. Also, you are creating circular dependencies here that can lead to resource leaks. That can be resolved with the...
Is it faster to count down than it is to count up?
...s stuff is almost certainly irrelevant as there isn't a simple 1-1 mapping from instructions to clock cycles. (Though I could imagine it coming up if you were doing things like generating precisely timed video signals from a microcontroller. But then you'd write in assembly language anyway.)
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