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How to deploy an ASP.NET Application with zero downtime
...e database. Once you upgrade the DB for Server 1, server 2 will explode. Now you can backup/restore the database for testing on server 1, but then you have the issue of sorting out the data that changed in the live DB while while the parallel copy was running.
– EBarr
...
Return array in a function
...his example also modifies the parameter list by adding the const keyword. Now you get a reference without copying it, but you can't modify it, so the caller knows it'll be the same as before the function got to it.
All of this is swell, but idiomatic c++ rarely works with collections as a whole....
What is SQL injection? [duplicate]
...erabilities because attackers can send values to an application that they know will be interpolated into a SQL string. By being very clever, they can manipulate the result of queries, reading data or even changing data that they shouldn't be allowed to do.
Example in PHP:
$password = $_POST['pass...
appearanceWhenContainedIn in Swift
...
Don't know why this is downvote since it 's the way to do it in iOS10 swift 3... Thanks
– Vassily
Dec 21 '16 at 14:47
...
Do I really have a car in my garage? [duplicate]
...definition for getPriceAfterYears and specific attributes and methods.
So now back in the Garage class, you can define:
// car specific
public int numberOfAutomaticCars() {
int s = 0;
for(Car car : cars) {
if(car.isAutomatic()) {
s++;
}
}
return s;
}
pub...
What is the difference between bottom-up and top-down?
...tree may be infinitely large. Furthermore, in some problems you might not know what the full tree looks like ahead of time. Thus, you might need a strategy/algorithm to decide which subproblems to reveal.)
Memoization, Tabulation
There are at least two main techniques of dynamic programming whic...
Static variables in JavaScript
...they can have properties.
For instance, quoting the example given on the (now vanished) article Static variables in Javascript:
function countMyself() {
// Check to see if the counter has been initialized
if ( typeof countMyself.counter == 'undefined' ) {
// It has not... perform t...
What is the JavaScript convention for no operation?
...s shown here:
setTimeout(function() {
console.log('Start: ', Date.now());
Function.prototype();
console.log('End : ', Date.now());
}, 1000);
Although this is a "true noop" since most browsers seem to do nothing to execute the noop defined this way (and hence save CPU cyc...
Swift: Testing optionals for nil
...ing with possXYZ (the unwrapped value of xyz)
} else {
// do something now that we know xyz is .None
}
This way you can both test if xyz contains a value and if so, immediately work with that value.
With regards to your compiler error, the type UInt8 is not optional (note no '?') and therefor...
Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
...f convertibility of method groups and delegate types, which is different.
Now that we've got that out of the way, we can walk through section 6.6 of the spec and see what we get.
To do overload resolution we need to first determine which overloads are applicable candidates. A candidate is applicab...