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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 ...
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How to get 30 days prior to current date?

... Get next 30 days from today let now = new Date() console.log('Today: ' + now.toUTCString()) let next30days = new Date(now.setDate(now.getDate() + 30)) console.log('Next 30th day: ' + next30days.toUTCString()) Get last 30 days form today let n...
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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....
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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...
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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 ...
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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...
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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...
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Constant pointer vs Pointer to constant [duplicate]

I want to know the difference between 8 Answers 8 ...
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How to move Jenkins from one PC to another

...evelopment PC. I installed it on my development PC, because I had limited knowledge on this tool; so I tested on it in my development PC. Now, I feel comfortable with Jenkins as my long term "partner" in the build process and would like to "move" this Jenkins to a dedicated server. ...
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What is a 'Closure'?

...ery.js and take a look at the first line. You'll see a function is opened. Now skip to the end, you'll see window.jQuery = window.$ = jQuery. Then the function is closed and self executed. You now have access to the $ function, which in turn has access to the other functions defined in the closure. ...