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Best explanation for languages without null
... let middleLen = match p.MiddleName with
| None -> 0
| Some(s) -> s.Length
p.FirstName.Length + middleLen + p.LastName.Length
with no worries. In contrast, in a language with nullable references for types like string, then assuming
class Person
...
How to create full compressed tar file using Python?
... ventaquil
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answered Jun 13 '13 at 6:58
George V. ReillyGeorge V. Reilly
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Why do results vary based on curly brace placement?
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answered Sep 4 '10 at 8:50
ResiduumResiduum
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Postgres manually alter sequence
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edited Oct 23 '18 at 20:43
Is Ma
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answered Jan 5 '12 at 15:31
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Nested attributes unpermitted parameters
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answered Apr 10 '13 at 8:20
thorsten müllerthorsten müller
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If I have ACCESS_FINE_LOCATION already, can I omit ACCESS_COARSE_LOCATION?
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edited Mar 30 '17 at 16:30
answered Mar 9 '13 at 12:43
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What's the difference of $host and $http_host in Nginx
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220
$host is a variable of the Core module.
$host
This variable is equal to line Host in the head...
Random Gaussian Variables
...rand = new Random(); //reuse this if you are generating many
double u1 = 1.0-rand.NextDouble(); //uniform(0,1] random doubles
double u2 = 1.0-rand.NextDouble();
double randStdNormal = Math.Sqrt(-2.0 * Math.Log(u1)) *
Math.Sin(2.0 * Math.PI * u2); //random normal(0,1)
double randNormal =...
Conveniently Declaring Compile-Time Strings in C++
...ng to match the elegance of Scott Schurr's str_const presented at C++ Now 2012. It does require constexpr though.
Here's how you can use it, and what it can do:
int
main()
{
constexpr str_const my_string = "Hello, world!";
static_assert(my_string.size() == 13, "");
static_assert(my_st...
Is PHP's count() function O(1) or O(n) for arrays?
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edited Apr 20 '13 at 22:03
John Carter
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