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difference between foldLeft and reduceLeft in Scala
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To really understand what are you doing with fold/reduce,
check this: http://wiki.tcl.tk/17983
very good explanation. once you get the concept of fold,
reduce will come together with the answer above:
list.tail.foldLeft(list.head)(_)
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Bootstrap close responsive menu “on click”
...t=".navbar-collapse">Products</a></li>
Here it is at work http://jsfiddle.net/jaketaylor/84mqazgq/
This will make your toggle and target selectors specific to screen size and eliminate glitches on the larger menu. If anyone is still having issues with glitches please let me know a...
Remove multiple keys from Map in efficient way?
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Odd behavior when Java converts int to byte?
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grep harder. http://iiti.ac.in/people/~tanimad/JavaTheCompleteReference.pdf page 59
– eigenfield
Jan 6 at 14:05
a...
Are Java static initializers thread safe?
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Best approach to remove time part of datetime in SQL Server
...a function or CAST to a column invalidates index usage. See number 2 here: http://www.simple-talk.com/sql/t-sql-programming/ten-common-sql-programming-mistakes/
Now, this does have an example of later SQL Server optimiser versions managing CAST to date correctly, but generally it will be a bad idea...
Merge PDF files
...m the input files until the write
# operation. Thanks to
# https://stackoverflow.com/questions/6773631/problem-with-closing-python-pypdf-writing-getting-a-valueerror-i-o-operation/6773733#6773733
for input_file in input_files:
input_streams.append(open(input_file,...
How do I pick randomly from an array?
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Can pandas automatically recognize dates?
...das read_csv method is great for parsing dates. Complete documentation at http://pandas.pydata.org/pandas-docs/stable/generated/pandas.io.parsers.read_csv.html
you can even have the different date parts in different columns and pass the parameter:
parse_dates : boolean, list of ints or names, lis...
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
... code, or
combined with array_to_string() to
format it as a list:
http://www.postgresql.org/docs/current/static/xaggr.html
I'd link to the 8.4 development docs but they don't seem to list this feature yet.
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