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What is the difference D3 datum vs. data?

Can someone please explain the difference between datum() and data() in D3.js? I see both being used and I am not sure why you should choose one over the other? ...
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How to complete a git clone for a big project on an unstable connection?

...codebase, but at the moment I have an internet connection of about 300kbps and it's just anything but stable. I can get the connection back any moment, but then the git clone process already stopped working, and no way to get it running again. Is there some way to have a more failure-resistant git c...
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Global and local variables in R

I am a newbie for R, and I am quite confused with the usage of local and global variables in R. 3 Answers ...
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what is “strict mode” and how is it used?

...en looking over the JavaScript reference on the Mozilla Developer Network, and I came across something called "strict mode" . I read it over and I'm having trouble understanding what it does. Can someone briefly explain (in general) what its purpose is and how it is useful? ...
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Python != operation vs “is not”

... == is an equality test. It checks whether the right hand side and the left hand side are equal objects (according to their __eq__ or __cmp__ methods.) is is an identity test. It checks whether the right hand side and the left hand side are the very same object. No methodcalls ...
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Use tab to indent in textarea

... } }); jQuery: How to capture the TAB keypress within a Textbox How to handle <tab> in textarea? http://jsfiddle.net/jz6J5/ share | improve this answer | follow ...
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LISTAGG in Oracle to return distinct values

... 19c and later: select listagg(distinct the_column, ',') within group (order by the_column) from the_table 18c and earlier: select listagg(the_column, ',') within group (order by the_column) from ( select distinct the_colum...
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Rotating and spacing axis labels in ggplot2

... In the newest version of ggplot2 the command would be: q + theme(axis.text.x=element_text(angle = -90, hjust = 0)) – rnorberg Sep 28 '12 at 13:18 ...
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How to calculate the CPU usage of a process by PID in Linux from C?

...time kernel mode jiffies with child's You're probably after utime and/or stime. You'll also need to read the cpu line from /proc/stat, which looks like: cpu 192369 7119 480152 122044337 14142 9937 26747 0 0 This tells you the cumulative CPU time that's been used in various categories, ...
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What are the obj and bin folders (created by Visual Studio) used for?

I created a new project in Visual Studio 2010 and noticed that there are now two new folders named obj and bin in my project directory. ...