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Maximum on http header values?
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325
No, HTTP does not define any limit. However most web servers do limit size of headers they acce...
How to convert Milliseconds to “X mins, x seconds” in Java?
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27 Answers
27
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Remove duplicated rows using dplyr
...tion for this purpose.
Original answer below:
library(dplyr)
set.seed(123)
df <- data.frame(
x = sample(0:1, 10, replace = T),
y = sample(0:1, 10, replace = T),
z = 1:10
)
One approach would be to group, and then only keep the first row:
df %>% group_by(x, y) %>% filter(row_num...
Initializing a member array in constructor initializer
...tly to fire off list initialization
struct A {
int foo[3];
A():foo{1, 2, 3} { }
A():foo({1, 2, 3}) { } /* invalid */
};
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Where to place the 'assets' folder in Android Studio?
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22 Answers
22
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How to get the name of the calling method?
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213
puts caller[0]
or perhaps...
puts caller[0][/`.*'/][1..-2]
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MySQL, update multiple tables with one query
..., we increase the number of books in a particular order with Order.ID = 1002 in Orders table then we also need to reduce that the total number of books available in our stock by the same number in Books table.
UPDATE Books, Orders
SET Orders.Quantity = Orders.Quantity + 2,
Books.InStock = Books....
Is Redis just a cache?
... 1
(integer) 1
$ HMSET question:1 title "Is Redis just a cache?" asked_by 12 votes 0
OK
$ HINCRBY unique_ids answer 1
(integer) 1
$ HMSET answer:1 question_id 1 answer_text "No, its a lot more" answered_by 15 votes 1
OK
Handling Up Votes
Now, everytime someone upvotes a question or an answer, yo...
How do you do a ‘Pause’ with PowerShell 2.0?
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edited Dec 27 '14 at 14:54
Peter Mortensen
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