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Getting unique items from a list [duplicate]

...able<T> of distinct items: var uniqueItems = yourList.Distinct(); And if you need the sequence of unique items returned as a List<T>, you can add a call to ToList: var uniqueItemsList = yourList.Distinct().ToList(); ...
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How do I escape ampersands in batch files?

How do I escape ampersands in a batch file (or from the Windows command line) in order to use the start command to open web pages with ampersands in the URL? ...
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Ruby arrays: %w vs %W

... Yes. When printing output, Ruby always uses double quotes and escapes characters like #. '#{foo}' and "\#{foo}" give you the same string, which you can verify with '#{foo}' == "\#{foo}" in irb. – Brian Campbell Dec 4 '16 at 5:37 ...
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File Upload using AngularJS

...nfortunately that is a browser object not available in Internet Explorer 9 and below. If you need to support those older browsers, you will need a backup strategy such as using <iframe> or Flash. There are already many Angular.js modules to perform file uploading. These two have explicit sup...
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What is the difference between String and string in C#?

... If you decide to use StyleCop and follow that, that will say to use the types specific to the language. So for C# you'll have string (instead of String), int (instead of Int32), float (instead of Single) - stylecop.soyuz5.com/SA1121.html ...
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How do I get the name of captured groups in a C# Regex?

... Use GetGroupNames to get the list of groups in an expression and then iterate over those, using the names as keys into the groups collection. For example, GroupCollection groups = regex.Match(line).Groups; foreach (string groupName in regex.GetGroupNames()) { Console.WriteLine( ...
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Show/hide 'div' using JavaScript

For a website I'm doing, I want to load one div, and hide another, then have two buttons that will toggle views between the div using JavaScript. ...
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looping through an NSMutableDictionary

... A standard way would look like this for(id key in myDict) { id value = [myDict objectForKey:key]; [value doStuff]; } share | ...
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When to use leading slash in gitignore

I'm trying to understand more clearly the .gitignore syntax, and in particular as far as https://github.com/github/gitignore gitignores are concerned. ...
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Ask for User Permission to Receive UILocalNotifications in iOS 8

...ion to show notifications from your app, this applies for both remote/push and local notifications. In Swift you can do it like this, Update for Swift 2.0 func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool { // Override point for...