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How to split a sequence into two pieces by predicate?
...eturn accum
}
}
return split_helper(List(), list_in, search)
}
// TEST
// split(List("a", "b", "c", "d", "c", "a"), {x: String => x != "x"})
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How to convert list of tuples to multiple lists?
...87597s
Running it multiple times, append is 3x - 4x faster than zip! The test script is here:
#!/usr/bin/env python3
import time
N = 2000000
xs = list(range(1, N))
ys = list(range(N+1, N*2))
zs = list(zip(xs, ys))
t1 = time.time()
xs_, ys_ = zip(*zs)
print(len(xs_), len(ys_))
t2 = time.time()...
Does constexpr imply inline?
...n the ELF object files: How can a C++ header file include implementation?
Tested in GCC 8.3.0.
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Reload the path in PowerShell
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I tested and use it exactly on Windows 10, it is useful to me quite often. The usage example I've made is not prepared, it's print from my console. Perhaps in your case it's come kind of conflict between user and system variabl...
How to format all Java files in an Eclipse project at one time?
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Actually, upon further testing I have determined that the difference is Package Explorer vs. Project Explorer. In Project Explorer, it doesn't format all the files and in Package Explorer it does.
– Luke
Jul ...
How do I write a “tab” in Python?
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Here are some more exotic Python 3 ways to get "hello" TAB "alex" (tested with Python 3.6.10):
"hello\N{TAB}alex"
"hello\N{tab}alex"
"hello\N{TaB}alex"
"hello\N{HT}alex"
"hello\N{CHARACTER TABULATION}alex"
"hello\N{HORIZONTAL TABULATION}alex"
"hello\x09alex"
"hello\u0009alex"
"hello...
Redis is single-threaded, then how does it do concurrent I/O?
...oncurrency doesn't do work in parallel and it most certainly does as I can test this with running task async and getting work done that is ultimately considered to be in parallel. parallelism in the context of that article is referring to the multicore nature of being able to run on mutliple thread...
Best way to convert IList or IEnumerable to Array
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ahh... the unit test project does not include the linq by default. Thank you!
– zsf222
Oct 25 '15 at 4:51
add a comm...
Exclude a sub-directory using find
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@Ravi are you using bash shell? I just tested this on my terminal and it works for me. Try copy and pasting the solution instead if you made modifications to your script.
– sampson-chen
Nov 19 '12 at 19:30
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SQL Server Output Clause into a scalar variable
...ELECT;
DECLARE @val1 int;
DECLARE @val2 int;
UPDATE [dbo].[PortalCounters_TEST]
SET @val1 = NextNum, @val2 = NextNum = NextNum + 1
WHERE [Condition] = 'unique value'
SELECT @val1, @val2
In the example above @val1 has the before value and @val2 has the after value although I suspect any changes fr...