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What can be the reasons of connection refused errors?

I'm trying to write a server program in C, using another client, I get this error when I try to connect through port 2080 for example. ...
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Amazon S3 boto - how to create a folder?

How can I create a folder under a bucket using boto library for Amazon s3? 11 Answers ...
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Android: combining text & image on a Button or ImageButton

I'm trying to have an image (as the background) on a button and add dynamically, depending on what's happening during run-time, some text above/over the image. ...
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Javascript: How to loop through ALL DOM elements on a page?

I'm trying to loop over ALL elements on a page, so I want to check every element that exists on this page for a special class. ...
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Identify if a string is a number

... int n; bool isNumeric = int.TryParse("123", out n); Update As of C# 7: var isNumeric = int.TryParse("123", out int n); or if you don't need the number you can discard the out parameter var isNumeric = int.TryParse("123", out _); The ...
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How do I format a date with Dart?

I have an instance of DateTime and I would like to format that to a String. How do I do that? I want to turn the date into a string, something like "2013-04-20". ...
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Xcode 6 iPhone Simulator Application Support location

In Xcode 6, I have an app I'm using Core Data in, but there is no folder in Application Support for the iOS 8 iPhone Simulator. Where are my files and Core Data sqlite database being stored? ...
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Choosing Mobile Web HTML5 Framework [closed]

For the new project, I have been searching for a framework with support of HTML5 and runs on mobile, that is IPhone, IPads. I found out these: ...
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How to check if an object is an array?

I'm trying to write a function that either accepts a list of strings, or a single string. If it's a string, then I want to convert it to an array with just the one item so I can loop over it without fear of an error. ...
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How to escape single quotes in MySQL

How do I insert a value in MySQL that consist of single or double quotes. i.e 16 Answers ...