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Swapping two variable value without using third variable
...s
Where as the version with the temporary variable takes:
real 0m0.543s
user 0m0.540s
sys 0m0.000s
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What's the best UML diagramming tool? [closed]
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354
votes
Some context: Recently for graduate school I researched UML tools for usabi...
Grep only the first match and stop
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edited Jun 11 '19 at 12:34
Trevor Boyd Smith
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Permanently adding a file path to sys.path in Python
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tuomassalo
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answered Sep 4 '12 at 6:20
BrenBarnBrenBarn
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Java: int array initializes with nonzero elements
...islav Poslavsky
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What is Domain Driven Design (DDD)? [closed]
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edited Dec 8 '16 at 10:30
Sebas
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answered Aug 3 ...
Omit rows containing specific column of NA
...nction and 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...
How to Convert Boolean to String
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369
Simplest solution:
$converted_res = $res ? 'true' : 'false';
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Capture iframe load complete event
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203
<iframe> elements have a load event for that.
How you listen to that event is up to you...
How to manage REST API versioning with spring?
I've been searching how to manage a REST API versions using Spring 3.2.x, but I haven't find anything that is easy to maintain. I'll explain first the problem I have, and then a solution... but I do wonder if I'm re-inventing the wheel here.
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