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Removing multiple keys from a dictionary safely

... 15 Adding this for people coming from a search engine. If keys are known (when safety is not an issue), multiple keys can be deleted in one li...
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How do you convert a DataTable into a generic list?

...e DataTableExtensions.AsEnumerable (an extension method) and then if you really need a List<DataRow> instead of just IEnumerable<DataRow> you can call Enumerable.ToList: IEnumerable<DataRow> sequence = dt.AsEnumerable(); or using System.Linq; ... List<DataRow> list = dt.A...
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Installing PG gem on OS X - failure to build native extension

It seems many others have had problems installing the pg gem. None of the solutions posed for others have worked for me. 1...
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How to change the font on the TextView?

...ream Sandwich introduced a new type family named Roboto, created specifically for the requirements of UI and high-resolution screens. The current TextView framework offers Roboto in thin, light, regular and bold weights, along with an italic style for each weight. The framework also off...
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Getting a random value from a JavaScript array

... @SapphireSun this is correct. Note the Math.floor(Math.random(...)) call, which rounds down. – ashes999 Jan 19 '14 at 12:43 34 ...
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Update Eclipse with Android development tools v. 23

...ny problems of previous ADT version 23. Step-by-step: Menu Help → Install New Software... For "Work with", select the Android source https://dl-ssl.google.com/android/eclipse Tick ADT v23.0 for installation, then click "Next" Eclipse will show "Install Remediation Page" since there is conflict...
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How to select a node using XPath if sibling node has a specific value?

... Seems I actually didn't read the title. :) Answer stays valid anyway. – Jens Erat Jun 11 '13 at 13:34 2 ...
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Longest line in a file

...ing for a simple way to find the length of the longest line in a file. Ideally, it would be a simple bash shell command instead of a script. ...
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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?

Is there a way to call a block with a primitive parameter after a delay, like using performSelector:withObject:afterDelay: but with an argument like int / double / float ? ...
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How can I recall the argument of the previous bash command?

Is there a way in Bash to recall the argument of the previous command? 7 Answers 7 ...