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What's the 'Ruby way' to iterate over two arrays at once
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Is there a way to get the index inside the loop shown above?
– Biju
Dec 25 '18 at 10:38
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Fix a Git detached head?
...e you have changed a file and want to restore it to the state it is in the index, don't delete the file first, just do
git checkout -- path/to/foo
This will restore the file foo to the state it is in the index.
If you want to keep your changes associated with the detached HEAD
Run git branch tmp -...
How is Python's List Implemented?
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It's a dynamic array. Practical proof: Indexing takes (of course with extremely small differences (0.0013 µsecs!)) the same time regardless of index:
...>python -m timeit --setup="x = [None]*1000" "x[500]"
10000000 loops, best of 3: 0.0579 usec per loop
...&...
What is BSON and exactly how is it different from JSON?
...sing BSON encoding on top of JSON, MongoDB gets the capability of creating indexes on top of values that resides inside the JSON document in raw format. This helps in running efficient analytical queries as NoSQL system were known for having no support for Indexes.
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NoSQL - MongoDB vs CouchDB [closed]
... expressions
Run arbitrary javascript functions server-side
Has geospatial indexing and queries
Multiple storage engines with different performance characteristics
Performance over features
Document validation
Journaling
Powerful aggregation framework
On 32bit systems, limited to ~2.5Gb
Text search ...
Replace multiple strings with multiple other strings
...ction.
The +n-1 converts the string to the number then 1 is subtracted to index the pets array.
The %number is then replaced with the string at the array index.
The /g causes the lambda function to be called repeatedly with each number which is then replaced with a string from the array.
In mode...
How line ending conversions work with git core.autocrlf between different operating systems
...f settings, and "clean" filters) are run when files move from work-tree to index, i.e., during git add rather than at git commit time.
(Note that git commit -a or --only or --include do add files to the index at that time, though.)
For more on that, see "What is difference between autocrlf and ...
Alternative to google finance api [closed]
...s(h, true)
end
#parse csv
def printCodes(substring, length)
a = data.index(substring)
b = data.byteslice(a, 10)
puts "printing codes of string: "
puts b
puts b.split('').map(&:ord).to_s
end
def CSVtoObject(data, parameters)
rawData = []
lineBreaks = data.split(10.c...
MySQL “Group By” and “Order By”
...Y fromEmail, timestamp
In order for the query to run efficiently, proper indexing is required.
Note that for simplification purposes, I've removed the LOWER(), which in most cases, won't be used.
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What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
...them. I also didn't know about gnu.org/software/coreutils/manual/html_node/index.html.
– Trenton
Aug 10 '09 at 21:57
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