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Maintain/Save/Restore scroll position when returning to a ListView
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20 Answers
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vertical align middle in
I want to keep the height of #abc div at 50px and text to align vertically in the middle of the div .
10 Answers
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Omit rows containing specific column of NA
... put it into a function thusly:
DF <- data.frame(x = c(1, 2, 3), y = c(0, 10, NA), z=c(NA, 33, 22))
completeFun <- function(data, desiredCols) {
completeVec <- complete.cases(data[, desiredCols])
return(data[completeVec, ])
}
completeFun(DF, "y")
# x y z
# 1 1 0 NA
# 2 2 10 33
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How can I get the ID of an element using jQuery?
...t;div id="test"></div>
Or through the DOM:
$('#test').get(0).id;
or even :
$('#test')[0].id;
and reason behind usage of $('#test').get(0) in JQuery or even $('#test')[0] is that $('#test') is a JQuery selector and returns an array() of results not a single element by its defaul...
Maximum size of an Array in Javascript
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edited Oct 8 '12 at 0:25
answered May 27 '11 at 16:20
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When should I use nil and NULL in Objective-C?
...epresent an object
– cobbal
Oct 14 '09 at 5:43
41
also, in MacTypes.h there is #define nil NULL
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How to push both value and key into PHP array
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answered Jan 23 '10 at 0:45
PekkaPekka
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Why would one use nested classes in C++?
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230
Nested classes are cool for hiding implementation details.
List:
class List
{
public:
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Debugging in Clojure? [closed]
... | (fib 1)
TRACE t4427: | | => 1
TRACE t4428: | | (fib 0)
TRACE t4428: | | => 0
TRACE t4426: | => 1
TRACE t4429: | (fib 1)
TRACE t4429: | => 1
TRACE t4425: => 2
2
In Clojure 1.4, dotrace has moved:
You need the dependency:
[org.clojure/tools.trace...
MySQL check if a table exists without throwing an exception
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10 Answers
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