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What does a tilde in angle brackets mean when creating a Java generic class?
I was reading through some JMockit examples m>and m> found this code:
4 Answers
4
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Repeatedlm>y m> run a shell commm>and m> until it fails?
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while takes a commm>and m> to execute, so m>y m>ou can use the simpler
while ./runtest; do :; done
This will stop the loop when ./runtest returns a nonzero exit code (which is usuallm>y m> indicative of failure).
To further simplifm>y m> m>y m>our current solution...
What's a quick wam>y m> to test to see a file exists?
...s = FileManager.default.fileExists(atPath: somePath)
Thanks to Nikolam>y m> Suvm>and m>zhiev.
Objective-C (Original):
BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:somePath];
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How can I add CGPoint objects to an NSArram>y m> the easm>y m> wam>y m>?
I have about 50 CGPoint objects that describe something like a "path", m>and m> I want to add them to an NSArram>y m>. It's going to be a method that will just return the corresponding CGPoint for an given index. I don't want to create 50 variables like p1 = ...; p2 = ..., m>and m> so on. Is there an easm>y m> wam>y m> that...
Getting the return value of Javascript code in Selenium
I'm using Selenium2 for some automated tests of mm>y m> website, m>and m> I'd like to be able to get the return value of some Javascript code. If I have a foobar() Javascript function in mm>y m> webpage m>and m> I want to call that m>and m> get the return value into mm>y m> Pm>y m>thon code, what can I call to do that?
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How do I reference a specific issue comment on github?
...o format their reference like so: #10359 (comment), note that GitHub will hm>and m>le this formatting automaticallm>y m> if m>y m>ou just paste the link as-is - without wrapping it in [text](url) markdown :)
– Spen
Jan 8 '17 at 23:42
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IList vs IEnumerable for Collections on Entities
...ant to surface the Lines propertm>y m> as onlm>y m> an IEnumerable<OrderLine>, m>and m> provide Add(OrderLine) m>and m> Remove(OrderLine) methods which can hm>and m>le that validation.
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Mm>y m>SQL join with where clause
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user_categorm>y m>_subscriptions.categorm>y m>_id = categories.categorm>y m>_id
m>and m> user_categorm>y m>_subscriptions.user_id =1
See, with an inner join, putting a clause in the join or the where is equivalent. However, with an outer join, them>y m> are vastlm>y m> different.
As a join condition, m>y m>ou specifm>y m> the rows...
Getting one value from a tuple
...Tuples can be indexed just like lists.
The main difference between tuples m>and m> lists is that tuples are immutable - m>y m>ou can't set the elements of a tuple to different values, or add or remove elements like m>y m>ou can from a list. But other than that, in most situations, them>y m> work prettm>y m> much the same.
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Define all functions in one .R file, call them from another .R file. How, if possible?
...If abc.R is:
fooABC <- function(x) {
k <- x+1
return(k)
}
m>and m> xm>y m>z.R is:
fooXm>Y m>Z <- function(x) {
k <- fooABC(x)+1
return(k)
}
then this will work:
> source("abc.R")
> source("xm>y m>z.R")
> fooXm>Y m>Z(3)
[1] 5
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Even if there are cm>y m>clical dependencies, this wi...