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How do you build a Singleton in Dart?
...sible way:
void main() {
var s1 = Singleton.instance;
s1.somedata = 123;
var s2 = Singleton.instance;
print(s2.somedata); // 123
print(identical(s1, s2)); // true
print(s1 == s2); // true
//var s3 = new Singleton(); //produces a warning re missing default constructor and breaks on ...
How can I add a key/value pair to a JavaScript object?
...
what if the key is a number? obj.123 = 456 doesn't work. obj[123] = 456 does work though
– axel freudiger
Nov 2 '12 at 10:39
13
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Is it possible to define more than one function per file in MATLAB, and access them from outside tha
...t;> makefuns
ans =
Done importing functions to workspace
>> fun1(123)
ans =
123
>> fun2()
ans =
1
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How to re-open an issue in github?
...rence the old one (by mentioning its number preceded by a hash sign, e.g. #123).
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What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
...a generated id after inserting.
INSERT INTO my_profile (Address) VALUES ('123 Fake St.');
SELECT CAST(scope_identity() AS int)
ExecuteReader gives you a data reader
back which will allow you to read all
of the columns of the results a row
at a time.
An example would be pulling profile informati...
How do I get the current time only in JavaScript
... gvlasov
13.5k1717 gold badges5858 silver badges9898 bronze badges
answered Feb 4 '15 at 16:16
Fernando GomesFernando Gomes
98...
Why do I get TypeError: can't multiply sequence by non-int of type 'float'?
...2
beta=1-alpha
C = (-math.log(1-beta))/alpha
coff = [0.0,0.01,0.0,0.35,0.98,0.001,0.0]
coff *= C
The error:
coff *= C
TypeError: can't multiply sequence by non-int of type 'float'
The solution - convert the list to numpy array:
coff = np.asarray(coff) * C
...
How to view DLL functions?
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Mark Amery
98.9k4848 gold badges336336 silver badges379379 bronze badges
answered May 4 '12 at 10:25
cslewycslew...
Get first and last day of month using threeten, LocalDate
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98
YearMonth
For completeness, and more elegant in my opinion, see this use of YearMonth class.
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How do I set default terminal to terminator? [closed]
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devnulldevnull
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