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How can I return an empty IEnumerable?
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583
You can use list ?? Enumerable.Empty<Friend>(), or have FindFriends return Enumerable.Empt...
How do you concatenate Lists in C#?
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309
Concat returns a new sequence without modifying the original list. Try myList1.AddRange(myList...
How to randomly pick an element from an array
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answered Nov 9 '11 at 13:15
Chris DennettChris Dennett
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How do I update an entity using spring-data-jpa?
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edited Jan 7 at 1:38
Simeon Leyzerzon
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an...
List vs List
...mpile time)
– Raze
Mar 22 '12 at 5:23
@Raze no, actually you can add a HashMap to a list of Maps, both of your example...
Reading output of a command into an array in Bash
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3 Answers
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C++ const map element access
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edited Aug 28 '13 at 14:38
user283145
answered Feb 27 '11 at 17:29
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if arguments is equal to this string, define a variable like this string
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How to append rows to an R data frame
..., and then, at the end, create your data.frame.
Continuing with Julian's f3 (a preallocated data.frame) as the fastest option so far, defined as:
# pre-allocate space
f3 <- function(n){
df <- data.frame(x = numeric(n), y = character(n), stringsAsFactors = FALSE)
for(i in 1:n){
df$x[i...
How to print out the contents of a vector?
...ZorawarZorawar
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