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UIButton remove all target-actions
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831
Call removeTarget:action:forControlEvents:, pass nil for the target, NULL for action, and use a ...
Get a filtered list of files in a directory
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14 Answers
14
Active
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Deprecated warning for Rails 4 has_many with order
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251
In Rails 4, :order has been deprecated and needs to be replaced with lambda scope block as shown...
(Deep) copying an array using jQuery [duplicate]
...do deep copying, it is not suitable for multidimensional arrays:
var a =[[1], [2], [3]];
var b = a.slice();
b.shift().shift();
// a is now [[], [2], [3]]
Note that although I've used shift().shift() above, the point is just that b[0][0] contains a pointer to a[0][0] rather than a value.
Likew...
What's the difference between == and .equals in Scala?
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edited Sep 18 '13 at 12:45
Erik Kaplun
31.6k1111 gold badges8888 silver badges9696 bronze badges
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Angularjs if-then-else construction in expression
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219
Angular expressions do not support the ternary operator before 1.1.5, but it can be emulated li...
How to make execution pause, sleep, wait for X seconds in R?
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145
See help(Sys.sleep).
For example, from ?Sys.sleep
testit <- function(x)
{
p1 <- pr...
Java String split removed empty values
... with limit set to negative value like
String[] split = data.split("\\|", -1);
Little more details:
split(regex) internally returns result of split(regex, 0) and in documentation of this method you can find (emphasis mine)
The limit parameter controls the number of times the pattern is applied and...
If string is empty then return some default value
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edited Feb 2 '11 at 5:59
answered Jan 27 '11 at 19:24
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