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Fastest way to remove first char in a String
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37
I do check now by call each one about 90000000 and I go the following result : Remove : 06.63 - TrimStart : 04.71 - subString : 03.09 ...
Why doesn't println! work in Rust unit tests?
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354
This happens because Rust test programs hide the stdout of successful tests in order for the t...
Assign multiple columns using := in data.table, by group
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This now works in v1.8.3 on R-Forge. Thanks for highlighting it!
x <- data.table(a = 1:3, b = 1:6)
f <- function(x) {list("hi", "hello")}
x[ , c("col1", "col2") := f(), by = a][]
# a b col1 col2
# 1: 1 1 hi hello
# 2: 2 2 hi hello
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Detect if value is number in MySQL
... * 1) = col1
It doesn't work for non-standard numbers like
1e4
1.2e5
123. (trailing decimal)
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How do you specify a different port number in SQL Management Studio?
...am trying to connect to a Microsoft SQL 2005 server which is not on port 1433. How do I indicate a different port number when connecting to the server using SQL Management Studio?
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How can I brew link a specific version?
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311
The usage info:
Usage: brew switch <formula> <version>
Example:
brew switch my...
Flatten an Array of Arrays in Swift
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Swift >= 3.0
reduce:
let numbers = [[1,2,3],[4],[5,6,7,8,9]]
let reduced = numbers.reduce([], +)
flatMap:
let numbers = [[1,2,3],[4],[5,6,7,8,9]]
let flattened = numbers.flatMap { $0 }
joined:
let numbers = [[1,2,3],[4],[5,6,7...
Convert a byte array to integer in Java and vice versa
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235
Use the classes found in the java.nio namespace, in particular, the ByteBuffer. It can do all ...
Reset keys of array elements in php?
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Riz-waan
54322 silver badges1212 bronze badges
answered May 8 '12 at 5:09
deceze♦deceze
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Cast Object to Generic Type for returning
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