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How do I handle too long index names in a Ruby on Rails ActiveRecord migration?
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edited Nov 28 '18 at 10:39
Martin Verdejo
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answered ...
How to find the type of an object in Go?
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"reflect"
)
func main() {
tst := "string"
tst2 := 10
tst3 := 1.2
fmt.Println(reflect.TypeOf(tst))
fmt.Println(reflect.TypeOf(tst2))
fmt.Println(reflect.TypeOf(tst3))
}
Output:
Hello, playground
string
int
float64
see: http://play.golang.org/p/XQMcUVsOja to view ...
Creating an empty list in Python
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337
Here is how you can test which piece of code is faster:
% python -mtimeit "l=[]"
10000000 lo...
Replace whitespaces with tabs in linux
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STANDARDS
The expand and unexpand utilities conform to IEEE Std 1003.1-2001
(``POSIX.1'').
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What is the logic behind the “using” keyword in C++?
...1, the using keyword when used for type alias is identical to typedef.
7.1.3.2
A typedef-name can also be introduced by an alias-declaration. The
identifier following the using keyword becomes a typedef-name and the
optional attribute-specifier-seq following the identifier appertains
to that typede...
Collect successive pairs from a stream
Given a stream such as { 0, 1, 2, 3, 4 } ,
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Create code first, many to many, with additional fields in association table
...e == "Pete")
.SingleOrDefault();
if (member1 != null)
{
var comment3 = new Comment { Message = "Good night!" };
var memberComment3 = new MemberComment { Member = member1,
Comment = comment3,
Somethi...
Is there a performance impact when calling ToList()?
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edited May 23 '17 at 12:18
Community♦
111 silver badge
answered Mar 20 '13 at 7:20
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Grouped LIMIT in PostgreSQL: show the first N rows for each group?
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38
Since v9.3 you can do a lateral join
select distinct t_outer.section_id, t_top.id, t_top.name ...
I want to get the type of a variable at runtime
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132
So, strictly speaking, the "type of a variable" is always present, and can be passed around as ...