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Number of days between two NSDates [duplicate]

...toDate!, options: []) return difference.day } } A bit of force unwrapping going on which you may want to remove depending on your use case. The above solution also works for time zones other than the current time zone, perfect for an app that shows information about places all around the wo...
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How to join int[] to a character separated string in .NET?

...nts that Join method should take an IEnumerable argument. I'm going to disappoint you :) String.Join requires array for a single reason - performance. Join method needs to know the size of the data to effectively preallocate necessary amount of memory. Here is a part of internal implementation of ...
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MVC3 DropDownListFor - a simple example?

I'm having trouble with DropDownListFor in my MVC3 app. I was able to use StackOverflow to figure out how to get them to appear on the View, but now I don't know how to capture the values in its corresponding properties on the View Model when it's submitted. In order to get this to work I had t...
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Date vs DateTime

...ce that using date for anything is a bad idea unless you're 100% sure your app will only ever operate in one time zone. Saving everything as datetime gives you the best of both worlds, including most critically, an easy way to avoid timezone nightmares if your server's timezone configs ever change....
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Ruby on Rails console is hanging when loading

... (rake, bin/rails, etc.) after deleting and recreating a new Ruby on Rails application. Google wasn't that helpful. I hope this is. Spring will start automatically when you re-run your command. share | ...
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Remove scroll bar track from ScrollView in Android

My Android app has a main WebView (HTML loaded from a local resource) which I want to use the entire width of the screen and be able to make (vertically) scrollable. So I've wrapped the WebView in a ScrollView in my layout XML, but no matter what I do I can't seem to be able to remove the scroll bar...
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What is the difference between the Eclipse Package Explorer and the Eclipse Project Explorer?

... One thing I just noticed is that, at least when developing Java Android apps, Projects will not show up in the Package Explorer if their project.properties file is borked or non-existent. I had only been using the Package Explorer and had the Project Explorer hidden, and I was pulling my hair ou...
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How to run Unix shell script from Java code?

...ve been writing java for 16 years, and always developed on windows, all my apps always deployed on solaris/ibm or oracle flavored unix boxes, so I have no idea what you are talking about – Kalpesh Soni Aug 31 '16 at 17:11 ...
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Looping through localStorage in HTML5 and JavaScript

...ve keys). for (var i = 0; i < localStorage.length; i++){ $('body').append(localStorage.getItem(localStorage.key(i))); } If the order matters, you could store a JSON-serialized array: localStorage.setItem("words", JSON.stringify(["Lorem", "Ipsum", "Dolor"])); The draft spec claims that a...
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How can I know if a process is running?

...ormally agree with you but this is an extension method. I think it is more appropriate to throw a null pointer exception given the syntax, it just feels more consistent with calling methods of null objects. – Aelphaeis Apr 28 '16 at 15:30 ...