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What is in your .vimrc? [closed]
Vi and Vim allow for really awesome customization, typically stored inside a .vimrc file. Typical features for a programmer would be syntax highlighting, smart indenting and so on.
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Reshaping data.frame from wide to long format
...s melt/cast. Here is a solution with reshape, assuming your data frame is called d:
reshape(d,
direction = "long",
varying = list(names(d)[3:7]),
v.names = "Value",
idvar = c("Code", "Country"),
timevar = "Year",
times = 1950:1954)
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How to grep (search) committed code in the Git history
...s and the like), you need to do:
git grep <regexp> $(git rev-list --all)
git rev-list --all | xargs git grep <expression> will work if you run into an "Argument list too long" error.
If you want to limit the search to some subtree (for instance, "lib/util"), you will need to pass tha...
Getting the name of the currently executing method
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Thread.currentThread().getStackTrace() will usually contain the method you’re calling it from but there are pitfalls (see Javadoc):
Some virtual machines may, under some circumstances, omit one or more stack frames from the stack trace. In the extreme case, a virtua...
Inspect attached event handlers for any DOM element
...k= handler or HTML <element onclick="handler"> can be retrieved trivially from the element.onclick property from script or in-debugger.
Event handlers attached using DOM Level 2 Events addEventListener methods and IE's attachEvent cannot currently be retrieved from script at all. DOM Level 3 ...
Search for one value in any column of any table inside a database
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How to search all columns of all
tables in a database for a keyword?
http://vyaskn.tripod.com/search_all_columns_in_all_tables.htm
EDIT: Here's the actual T-SQL, in case of link rot:
CREATE PROC SearchAllTables
(
@SearchStr nvarchar...
Python glob multiple filetypes
...out:
import glob
types = ('*.pdf', '*.cpp') # the tuple of file types
files_grabbed = []
for files in types:
files_grabbed.extend(glob.glob(files))
# files_grabbed is the list of pdf and cpp files
Perhaps there is another way, so wait in case someone else comes up with a better answer.
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How do I convert an NSString value to NSData?
...t Developer coming here,
to convert from NSString / String to NSData
var _nsdata = _nsstring.dataUsingEncoding(NSUTF8StringEncoding)
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Replace comma with newline in sed on MacOS?
...line, e.g.
echo "a,b" | sed -e $'s/,/\\\n/g'
Note this will not work on all shells, but will work on the most common ones.
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Matrix Transpose in Python
...g'), ('b', 'e', 'h'), ('c', 'f', 'i')]?
– acollection_
Feb 28 '16 at 3:15
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