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Convert a matrix to a 1 dimensional array
I have a matrix (32X48).
10 Answers
10
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How can I check if character in a string is a letter? (Python)
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How to escape apostrophe (') in MySql?
The MySQL documentation says that it should be \' . However, both scite and mysql shows that '' works. I saw that and it works. What should I do?
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Functional design patterns [closed]
...to learn Scala, to read the book from Paul Chiusano and Runar Bjarnason:
http://manning.com/bjarnason/
Part II: Functional design and combinator libraries
Making little languages
JSON serialization
Specification-based testing
Parsers
Purely functional parallelism
Purely functional state
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Converting a List to a comma separated string
Is there a way to take a List and convert it into a comma separated string?
8 Answers
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Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
...at.S_IRGRP |
stat.S_IWGRP |
stat.S_IROTH
)
This is documented at https://docs.python.org/3/library/os.html#os.chmod and the names are the same as the POSIX C API values documented at man 2 stat.
Another advantage is the greater portability as mentioned in the docs:
Note: Although Wind...
mongodb count num of distinct values per field/key
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TypeScript and field initializers
How to init a new class in TS in such a way (example in C# to show what I want):
14 Answers
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How can I convert comma separated string into a List
This doesn't work cause the split method returns a string[]
11 Answers
11
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What is the maximum length of a valid email address?
...ses.
I've collated a couple hundred test addresses, which you can find at http://www.dominicsayers.com/isemail
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