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How update the _id of one MongoDB Document?
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django urls without a trailing slash do not redirect
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Breaking up long strings on multiple lines in Ruby without stripping newlines
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B-Tree vs Hash Table
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Checking if a key exists in a JavaScript object?
...sm in Javascript (similar to Java reflection in the Java language).
http://www.ecma-international.org/ecma-262/5.1/#sec-8.10
The Property Descriptor type is used to explain the manipulation and reification of named property attributes. Values of the Property Descriptor type are records composed of ...
Android set height and width of Custom view programmatically
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How to prevent ifelse() from turning Date objects into numeric objects
...d class of the inputs.
library(data.table)
dates <- fifelse(dates == '2011-01-01', dates - 1, dates)
str(dates)
# Date[1:5], format: "2010-12-31" "2011-01-02" "2011-01-03" "2011-01-04" "2011-01-05"
dplyr::if_else
From dplyr 0.5.0 release notes:
[if_else] have stricter semantics that ifelse():...
Test parameterization in xUnit.net similar to NUnit
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Locate the nginx.conf file my nginx is actually using
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Position an element relative to its container
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