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Is there a limit to the length of HTML attributes?
... ATTCNT 60 -- increased --
ATTSPLEN 65536 -- These are the largest values --
LITLEN 65536 -- permitted in the declaration --
NAMELEN 65536 -- Avoid fixed limits in actual --
PILEN 65536 -- imple...
Drop data frame columns by name
...a simple list of names :
DF <- data.frame(
x=1:10,
y=10:1,
z=rep(5,10),
a=11:20
)
drops <- c("x","z")
DF[ , !(names(DF) %in% drops)]
Or, alternatively, you can make a list of those to keep and refer to them by name :
keeps <- c("y", "a")
DF[keeps]
EDIT :
For those still not ac...
dyld: Library not loaded … Reason: Image not found
... /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 65.1.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 169.3.0)
and for each libboost_xxx.dylib, do:
$ install_name_tool -change @executable_path/libboost_something.dylib /opt/local/lib/lib...
Why doesn't String switch statement support a null case?
...
145
As damryfbfnetsi points out in the comments, JLS §14.11 has the following note:
The prohibitio...
Add an element to an array in Swift
...
As of Swift 3 / 4 / 5, this is done as follows.
To add a new element to the end of an Array.
anArray.append("This String")
To append a different Array to the end of your Array.
anArray += ["Moar", "Strings"]
anArray.append(contentsOf: ["Moa...
How to calculate the difference between two dates using PHP?
...
532
Use this for legacy code (PHP < 5.3). For up to date solution see jurka's answer below
...
How to scroll to the bottom of a UITableView on the iPhone before the view appears
...
35 Answers
35
Active
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Why is list initialization (using curly braces) better than the alternatives?
...guage 4th Edition":
List initialization does not allow narrowing (§iso.8.5.4). That is:
An integer cannot be converted to another integer that cannot hold its value. For example, char
to int is allowed, but not int to char.
A floating-point value cannot be converted to another floating-point typ...
Download attachments using Java Mail
...
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edited Feb 5 '19 at 13:23
rzwitserloot
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