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What's the meaning of interface{}?

...interface that has no methods. Since there is no implements keyword, all types implement at least zero methods, and satisfying an interface is done automatically, all types satisfy the empty interface. That means that if you write a function that takes an interface{} value as a parameter, yo...
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For each row return the column name of the largest value

... If I have two equal columns I usually just pick the first. These are border cases which do not upset my statistical analysis. – dmvianna Jul 18 '13 at 23:59 ...
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Why compile Python code?

...ou invoke with python main.py is recompiled every time you run the script. All imported scripts will be compiled and stored on the disk. Important addition by Ben Blank: It's worth noting that while running a compiled script has a faster startup time (as it doesn't need to be compiled), i...
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How can I remove the first line of a text file using bash/sed script?

...(which comes with OS X by default). When I switched to GNU tail, the tail call was 10 times faster than the sed call (and the GNU sed call, too). AaronDigulla is correct here, if you're using GNU. – Dan Nguyen Aug 18 '16 at 20:59 ...
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Function to calculate distance between two coordinates

... What you're using is called the haversine formula, which calculates the distance between two points on a sphere as the crow flies. The Google Maps link you provided shows the distance as 2.2 km because it's not a straight line. Wolphram Alpha is...
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FormData.append(“key”, “value”) is not working

...rmdata.get(key) and more very useful methods Original answer: What I usually do to 'debug' a FormData object, is just send it (anywhere!) and check the browser logs (eg. Chrome devtools' Network tab). You don't need a/the same Ajax framework. You don't need any details. Just send it: var xhr = ...
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How to send data to local clipboard from a remote SSH session

... to a linux server via SSH. Like the OP, I wanted to be able to transfer small bits of text from terminal to my local clipboard, using only the keyboard. The essence of the solution: commandThatMakesOutput | ssh desktop pbcopy When run in an ssh session to a remote computer, this command takes...
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Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'

... It sounds like GCC 4.7.0 has finally removed the deprecated -mno-cygwin option, but distutils has not yet caught up with it. Either install a slightly older version of MinGW, or edit distutils\cygwinccompiler.py in your Python directory to remove all instan...
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Regex group capture in R with multiple capture-groups

... and str_match_all() to match all groups in a regex – smci Mar 26 '14 at 15:49 ...
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Difference between Control Template and DataTemplate in WPF

... Typically a control is rendered for its own sake, and doesn't reflect underlying data. For example, a Button wouldn't be bound to a business object - it's there purely so it can be clicked on. A ContentControl or ListBox, however,...