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What is an “unwrapped value” in Swift?

...birthday presents that come in stiff, hard, colored wrapping. You don't know if there's anything inside the wrapping until you unwrap the present — maybe there is nothing at all inside! If there is something inside, it could be yet another present, which is also wrapped, and which also might con...
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Where to place AutoMapper.CreateMaps?

... code (and refactor) if necessary. EDIT: Just thought I'd mention that I now use AutoMapper profiles, so the above example becomes: public static class AutoMapperWebConfiguration { public static void Configure() { Mapper.Initialize(cfg => { cfg.AddProfile(new UserProf...
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Can you attach a UIGestureRecognizer to multiple views?

... iOS 9 now enforces a single view per gesture recogniser, I'd been using the interface builder method below, but now I get the following message when I try to use it (some details cut for brevity): WARNING: A Gesture recognizer (&lt...
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Single TextView with multiple colored text

As the title says, I want to know is it possible to achieve two different colored characters in a single textview element. ...
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Specify sudo password for Ansible

...extra-vars "ansible_sudo_pass=yourPassword" Update 2017: Ansible 2.2.1.0 now uses var ansible_become_pass. Either seems to work. share | improve this answer | follow ...
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How to add a jar in External Libraries in android studio

...TEPS First switch your folder structure from Android to Project. Now search for the libs folder inside app - build folder. Once you have pasted the .jar file inside libs folder. Right click on the jar file and at end click on Add as library. This will take care of adding compile f...
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How to set input type date's default value to today?

... Ruby: (Also) DateTime.now.strftime("%Y-%m-%d") – Adam Grant Mar 2 '16 at 5:48 ...
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Any reason not to start using the HTML 5 doctype? [closed]

...ation and markup prerference. With that said, using <!DOCTYPE html> now and trying to make your markup conform to HTML5 is not a bad idea as long as you stick to stable features that work in browsers now. You wouldn't use anything in HTML4 or XHTML 1.x that doesn't work in browsers, would you...
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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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How to “properly” create a custom object in JavaScript?

...ype.toString= function() { return 'Shape at '+this.x+', '+this.y; }; Now to subclass it, in as much as you can call what JavaScript does subclassing. We do that by completely replacing that weird magic prototype property: function Circle(x, y, r) { Shape.call(this, x, y); // invoke the ba...