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How can I keep Bootstrap popovers alive while being hovered?

I am using a Bootstrap popover to create a hover card showing user info, and I am triggering it on mouseover of a button. I want to keep this popover alive while the popover itself is being hovered, but it disappears as soon as the user stops hovering over the button. How can I do this? ...
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Do HTML WebSockets maintain an open connection for each client? Does this scale?

I am curious if anyone has any information about the scalability of HTML WebSockets. For everything I've read it appears that every client will maintain an open line of communication with the server. I'm just wondering how that scales and how many open WebSocket connections a server can handle. Mayb...
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RabbitMQ and relationship between channel and connection

The RabbitMQ Java client has the following concepts: 4 Answers 4 ...
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How to select distinct rows in a datatable and store into an array

I have a dataset objds. objds contains a table named Table1. Table1 contains column named ProcessName. This ProcessName contains repeated names.So i want to select only distinct names.Is this possible. ...
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Prevent linebreak after

...l element. It will still take up space as if it were a block, however the width will be fitted to the content (assuming width:auto;). It can require a clear:left; for certain effects. display:inline-block; is the "best of both worlds" option. The div is treated as a block element. It responds to al...
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What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?

I want to tackle some image-processing problems in Haskell. I'm working with both bitonal (bitmap) and color images with millions of pixels. I have a number of questions: ...
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Why are C# 3.0 object initializer constructor parentheses optional?

It seems that the C# 3.0 object initializer syntax allows one to exclude the open/close pair of parentheses in the constructor when there is a parameterless constructor existing. Example: ...
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Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin

I've written two ways to async load pictures inside my UITableView cell. In both cases the image will load fine but when I'll scroll the table the images will change a few times until the scroll will end and the image will go back to the right image. I have no idea why this is happening. ...
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List of Big-O for PHP functions

After using PHP for a while now, I've noticed that not all built-in PHP functions are as fast as expected. Consider these two possible implementations of a function that finds if a number is prime using a cached array of primes. ...
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HTTP POST and GET using cURL in Linux [duplicate]

I have a server application written in ASP.NET on Windows that provides a web service. 2 Answers ...