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Creating an Android trial application that expires after a fixed time period

... @AmirDe Hi Amir, could you let me know what isn't working for you? I'm happy to help, support@trialy.io Trialy is working great for 1000+ users – Nick Jun 6 '18 at 7:26 ...
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How to define custom configuration variables in rails

... Update 1 Very recommended: I'm going with Rails Config gem nowadays for the fine grained control it provides. Update2 If you want a quick solution, then check Jack Pratt's answer below. Although my original answer below still works, this answer is now outdated. I recommend looking...
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Why can't I use the 'await' operator within the body of a lock statement?

...lock(), that in a synchronous world would execute on separate threads. But now with await (if allowed I mean) you could have two tasks executing within the lock block because the thread was reused. Hilarity ensues. Or did I misunderstand something? – Gareth Wilson ...
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What's the best way of structuring data on firebase?

I am new to firebase and I want to know what's the best way of structuring data on it. 3 Answers ...
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How to add new line into txt file

... You could do it easily using File.AppendAllText("date.txt", DateTime.Now.ToString()); If you need newline File.AppendAllText("date.txt", DateTime.Now.ToString() + Environment.NewLine); Anyway if you need your code do this: TextWriter tw = new StreamWriter("date.txt", ...
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(HTML) Download a PDF file instead of opening them in browser when clicked

...at is that this was answered 4 years ago and as Sarim points out, there is now the HTML 5 download attribute that can handle this. I agree, and think Sarim's answer is good (it probably should be the chosen answer if the OP ever returns). However, this answer is still the reliable way to handle it...
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How do I start Mongo DB from Windows?

...on localhost:27017 Your MongoDB is started and connected with RoboMongo (now Robo 3T) - a third party GUI tool share | improve this answer | follow | ...
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How to install Google Play Services in a Genymotion VM (with no drag and drop support)?

...gle Play Services. Once the new Google Play Services is installed you will now have stable, working access to Google Play share | improve this answer | follow ...
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How to show the “Are you sure you want to navigate away from this page?” when changes committed?

... Update (2017) Modern browsers now consider displaying a custom message to be a security hazard and it has therefore been removed from all of them. Browsers now only display generic messages. Since we no longer have to worry about setting the message, it i...
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CORS - What is the motivation behind introducing preflight requests?

...onfused as to the purpose of the preflight request but I think I've got it now. The key insight is that preflight requests are not a security thing. Rather, they're a not-changing-the-rules thing. Preflight requests have nothing to do with security, and they have no bearing on applications that ...