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Difference between “git add -A” and “git add .”
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This answer only applies to Git version 1.x. For Git version 2.x, see other answers.
Summary:
git add -A stages all changes
git add . stages new files and modifications, without deletions
git add -u stages modifications and deletions, without new files
Detai...
Git add all files modified, deleted, and untracked?
...s. You have to add changes to your staging area before you commit it. For example, you can add only some files to a commit and provide comments for it, instead of all files all the time. Here's a handy explanation of what this is doing and why: gitready.com/beginner/2009/01/18/the-staging-area.html
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Create thumbnail image
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https://msdn.microsoft.com/en-us/library/8t23aykb%28v=vs.110%29.aspx
Here's a rough example that takes an image file and makes a thumbnail image from it, then saves it back to disk.
Image image = Image.FromFile(fileName);
Image thumb = image.GetThumbnailImage(120, 120, ()=>false, IntPtr...
Hiding axis text in matplotlib plots
I'm trying to plot a figure without tickmarks or numbers on either of the axes (I use axes in the traditional sense, not the matplotlib nomenclature!). An issue I have come across is where matplotlib adjusts the x(y)ticklabels by subtracting a value N, then adds N at the end of the axis.
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How do I force git pull to overwrite everything on every pull?
... --help says "Normally, only files unknown to Git are removed, but if the -x option is specified, ignored files are also removed. This can, for example, be useful to remove all build products."
– nickang
Aug 24 '17 at 2:21
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Understanding slice notation
I need a good explanation (references are a plus) on Python's slice notation.
33 Answers
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How to sum array of numbers in Ruby?
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Try this:
array.inject(0){|sum,x| sum + x }
See Ruby's Enumerable Documentation
(note: the 0 base case is needed so that 0 will be returned on an empty array instead of nil)
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How to find all links / pages on a website
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Check out linkchecker—it will crawl the site (while obeying robots.txt) and generate a report. From there, you can script up a solution for creating the directory tree.
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Why is “int i = 2147483647 + 1;” OK, but “byte b = 127 + 1;” is not compilable?
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@10101010 - not exactly. it will be assignable to byte, but first (according to the standard) it will be evaluated as int.
– MByD
Oct 27 '11 at 5:03
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byte + byte = int… why?
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The third line of your code snippet:
byte z = x + y;
actually means
byte z = (int) x + (int) y;
So, there is no + operation on bytes, bytes are first cast to integers and the result of addition of two integers is a (32-bit) integer.
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