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Run a string as a command within a Bash script
...rameters so I ended up with something like:
my_exe ()
{
mysql -sN -e "select $1 from heat.stack where heat.stack.name=\"$2\";"
}
This is something I use to monitor openstack heat stack creation. In this case I expect two conditions, an action 'CREATE' and a status 'COMPLETE' on a stack named ...
Why does Decimal.Divide(int, int) work, but not (int / int)?
...mals.
You can enforce non-integer division on int arguments by explicitly casting at least one of the arguments to a floating-point type, e.g.:
int a = 42;
int b = 23;
double result = (double)a / b;
share
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Overriding == operator. How to compare to null? [duplicate]
...
ReferenceEquals emits a method call though, while casting to object will cause the compiler to just emit instructions to compare the references for equality. ... But that probably counts as evil micro-optimization.
– dtb
Nov 18 '10 at 2...
How to get the Power of some Integer in Swift language?
...x errors, this works exactly how you expected it to. All you have to do is cast a and b to Double and pass the values to pow. Then, if you're working with 2 Ints and you want an Int back on the other side of the operation, just cast back to Int.
import Darwin
let a: Int = 3
let b: Int = 3
let x:...
Foreign Key to multiple tables
...ulkon I know this is an old question but the query would be something like SELECT t.Subject AS ticketSubject, CASE WHEN u.Name IS NOT NULL THEN u.Name ELSE g.Name END AS ticketOwnerName FROM Ticket t INNER JOIN Party p ON t.Owner=p.PartyId LEFT OUTER JOIN User u ON u.ID=p.PartyId LEFT OUTER JOIN Gro...
New Array from Index Range Swift
...laring your array to begin with.
EDIT:
To fix your function, you have to cast your Slice to an array:
func aFunction(numbers: Array<Int>, position: Int) -> Array<Int> {
var newNumbers = Array(numbers[0..<position])
return newNumbers
}
// test
aFunction([1, 2, 3], 2) // ...
Creating anonymous objects in php
...w stdClass;
$obj->aProperty = 'value';
You can also take advantage of casting an array to an object for a more convenient syntax:
$obj = (object)array('aProperty' => 'value');
print_r($obj);
However, be advised that casting an array to an object is likely to yield "interesting" results fo...
How can I get the current user directory?
...ironment.SpecialFolder))
.Cast<Environment.SpecialFolder>()
.Select(specialFolder => new
{
Name = specialFolder.ToString(),
Path = Environment.GetFolderPath(specialFolder)
})
.OrderBy(item => item.Path.ToLower())
This is the result on my machine:
...
Converting java.util.Properties to HashMap
...
The efficient way to do that is just to cast to a generic Map as follows:
Properties props = new Properties();
Map<String, String> map = (Map)props;
This will convert a Map<Object, Object> to a raw Map, which is "ok" for the compiler (only warning)....
String comparison using '==' vs. 'strcmp()'
...
this is beacuse using '==' if one of the two operands is castable to number, php casts both the operands to numbers, and more, if a not number string is casted to number, it takes value zero, resulting equals to zero, so the result of the comparison with simple '==' can something u...