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What is the apply function in Scala?
...hat takes an Int parameter and returns an Int will have OO type of Function1[Int,Int].
// define a function in scala
(x:Int) => x + 1
// assign an object representing the function to a variable
val f = (x:Int) => x + 1
Since everything is an object in Scala f can now be treated as a re...
URL Encode a string in jQuery for an AJAX request
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edited Feb 12 '13 at 3:34
Eric J.
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How do you delete a column by name in data.table?
...of the following will remove column foo from the data.table df3:
# Method 1 (and preferred as it takes 0.00s even on a 20GB data.table)
df3[,foo:=NULL]
df3[, c("foo","bar"):=NULL] # remove two columns
myVar = "foo"
df3[, (myVar):=NULL] # lookup myVar contents
# Method 2a -- A safe idiom for e...
What is the meaning of the prefix N in T-SQL statements and when should I use it?
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edited May 23 '17 at 12:10
Community♦
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answered Apr 5 '12 at 8:20
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How to put individual tags for a scatter plot
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Is there a method that calculates a factorial in Java?
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answered May 21 '09 at 1:45
Karl the PaganKarl the Pagan
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python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B
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How to get the part of a file after the first line that matches a regular expression?
I have a file with about 1000 lines. I want the part of my file after the line which matches my grep statement.
12 Answers
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git: Apply changes introduced by commit in one repo to another repo
I have a repo1 and repo2 on local machine. They are very similar, but the latter is some kind of other branch ( repo1 is not maintained anymore).
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Omitting the first line from any Linux command output
I have a requirement where i'd like to omit the 1st line from the output of ls -latr "some path" Since I need to remove total 136 from the below output
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