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Ruby: Easiest Way to Filter Hash Keys?

...answer: Even though this is answer (as of the time of this comment) is the selected answer, the original version of this answer is outdated. I'm adding an update here to help others avoid getting sidetracked by this answer like I did. As the other answer mentions, Ruby >= 2.5 added the Hash#sli...
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I get exception when using Thread.sleep(x) or wait()

... You have a lot of reading ahead of you. From compiler errors through exception handling, threading and thread interruptions. But this will do what you want: try { Thread.sleep(1000); //1000 milliseconds is one second. } catch(InterruptedExcepti...
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How to convert timestamps to dates in Bash?

...script that converts a Unix timestamp to a date. The input can come either from the first parameter or from stdin, allowing for the following usage patterns: ...
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The type or namespace name 'DbContext' could not be found [closed]

... @Chris Dickinson, right click on the References item in the project and select Add Reference.... Then in the .NET tab, select System.Data.Entity. And if you want to use NuGet, right click on the References item and then select Add Library Package Reference... and in the Online tab, search for Ent...
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How do I use prepared statements in SQlite in Android?

... @jasonhudgins Why not just replace your SELECT with an INSERT? I just came from this thread, where you've confused a beginner – keyser May 3 '14 at 15:29 ...
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Get Insert Statement for existing row in MySQL

... See this if you get the error mysqldump: Couldn't execute 'SELECT @@GTID_MODE': Unknown system variable 'GTID_MODE' (1193) gist.github.com/arun057/5556563 – Daniel Schaffer Jul 12 '13 at 22:39 ...
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Is there a way to make ellipsize=“marquee” always scroll?

... was generally very ordinary — except for the fact that it was marked as selected. One line of code later and I had it working :) textView.setSelected(true); This makes sense, given what the Javadoc says: A view can be selected or not. Note that selection is not the same as focus. Views ar...
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Obtain form input fields using jQuery?

...s[field.name] = field.value; }); Note that this snippet will fail on <select multiple> elements. It appears that the new HTML 5 form inputs don't work with serializeArray in jQuery version 1.3. This works in version 1.4+ ...
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Resize svg when window is resized in d3.js

...u don't have to worry about sizes any more. Here is how I did it: d3.select("div#chartId") .append("div") // Container class to make it responsive. .classed("svg-container", true) .append("svg") // Responsive SVG needs these 2 attributes and no width and height attr. ....
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Visual Studio: How to break on handled exceptions?

...the VS2010 environement, by going to "Tools", "Import Export Settings" and select a reset to the C# environment... it contains the Exceptions Submenu item – BeardinaSuit Feb 14 '12 at 16:28 ...