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How to get duplicate items from a list using LINQ? [duplicate]

...t; s) .SelectMany(grp => grp.Skip(1)); Note that this will return all duplicates, so if you only want to know which items are duplicated in the source list, you could apply Distinct to the resulting sequence or use the solution given by Mark Byers. ...
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Does file_get_contents() have a timeout setting?

I am calling a series of links using the file_get_contents() method in a loop. Each link may take more than 15 minutes to process. Now, I worry about whether PHP's file_get_contents() has a timeout period? ...
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What is the scope of variables in JavaScript?

... even matter? Also, where are the variables stored if they are defined globally? 26 Answers ...
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How to check a checkbox in capybara?

... I couldn't find a way to make this work with the CSS selector at all! There must be some way to escape the square bracket but I couldn't find it. I had to resort to an XPath finder: find(:xpath, ".//input[@id='Extrapainful[]'][@value='12345']").set(true) – Jon M ...
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Long-lasting FB access-token for server to pull FB page info

... not expire (with help from @Igy), here is a clear, step-by-step quide for all those looking to the same: Make sure you are the admin of the FB page you wish to pull info from Create a FB App (should be with the same user account that is the page admin) Head over to the Facebook Graph API Explorer...
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How to read file contents into a variable in a batch file?

...variable – just like any other environment variable – it is one, after all: %Build% So to check for existence: if exist \\fileserver\myapp\releasedocs\%Build%.doc ... Although it may well be that no UNC paths are allowed there. Can't test this right now but keep this in mind. ...
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Can You Get A Users Local LAN IP Address Via JavaScript?

...ay it on the web page. Why? Because that's what the page I'm working on is all about, showing as much information as possible about you, the visitor: http://www.whatsmyip.org/more-info-about-you/ ...
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How can I repeat a character in Bash?

...ay matter with large repeat counts). Summary: If your repeat count is small, say up to around 100, it's worth going with the Bash-only solutions, as the startup cost of external utilities matters, especially Perl's. Pragmatically speaking, however, if you only need one instance of repeating ch...
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Traverse all the Nodes of a JSON Object Tree with JavaScript

... foo:"bar", arr:[1,2,3], subo: { foo2:"bar2" } }; //called with every property and its value function process(key,value) { console.log(key + " : "+value); } function traverse(o,func) { for (var i in o) { func.apply(this,[i,o[i]]); if (o[i] !== null &a...
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Can I set null as the default value for a @Value in Spring?

... This is really old, but you can use Spring EL now, e.g. @Value("${stuff.value:#{null}}") See this question. share | improve this an...