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Are (non-void) self-closing tags valid in HTML5?

...ich leads to <br /> meaning <br>> (i.e. <br>>) and <title/hello/ meaning <title>hello</title>). This is an SGML rule that browsers did a very poor job of supporting, and the spec advises authors to avoid the syntax. In XHTML, <foo /> means <foo>...
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Painless way to install a new version of R?

Andrew Gelman recently lamented the lack of an easy upgrade process for R (probably more relevant on Windows than Linux). Does anyone have a good trick for doing the upgrade, from installing the software to copying all the settings/packages over? ...
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Why can't stash be applied to the working directory?

...d an untracked file that was subsequently added to the repo. When you try and check it out, git rightly refuses because it would be overwriting an existing file. To fix, you could do something like deleting that file (it's okay, it's still in the repo), applying your stash, and then replacing the ...
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Fastest way to implode an associative array with keys

...function. So, if it's not for a URL, is this really faster than array_walk and what if you don't want it encoded? – e-motiv Jan 31 '14 at 23:12 10 ...
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How do you handle multiple submit buttons in ASP.NET MVC Framework?

Is there some easy way to handle multiple submit buttons from the same form? For example: 35 Answers ...
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JFrame in full screen Java

I will be doing a project soon and I will have to use full screen mode in it. 13 Answers ...
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Set font-weight using Bootstrap classes

Is there any Twitter Bootstrap class for font-weight: bold and other values of font-weight ? 6 Answers ...
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Parse query string in JavaScript [duplicate]

... Here is a fast and easy way of parsing query strings in JavaScript: function getQueryVariable(variable) { var query = window.location.search.substring(1); var vars = query.split('&'); for (var i = 0; i < vars.length; i++...
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Adding a column to a data.frame

...xt, [[.data.frame. Data frames can be indexed in several modes. When [ and [[ are used with a single vector index (x[i] or x[[i]]), they index the data frame as if it were a list. my.dataframe["new.col"] <- a.vector my.dataframe[["new.col"]] <- a.vector The data.frame method for $, ...
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linq query to return distinct field values from a list of objects

...f you just want the typeID values, it's easy - project to that with Select and then use the normal Distinct call.) In MoreLINQ we have the DistinctBy operator which you could use: var distinct = list.DistinctBy(x => x.typeID); This only works for LINQ to Objects though. You can use a groupin...