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How to get arguments with flags in Bash
...arrays
declare -A arguments=();
declare -A variables=();
# declaring an index integer
declare -i index=1;
# any variables you want to use here
# on the left left side is argument label or key (entered at the command line along with it's value)
# on the right side is the variable name the value ...
How to unstage large number of files without deleting the content
...you have a pristine repo (or HEAD isn't set)[1] you could simply
rm .git/index
Of course, this will require you to re-add the files that you did want to be added.
[1] Note (as explained in the comments) this would usually only happen when the repo is brand-new ("pristine") or if no commits ha...
布局列表框循序渐进：从商品清单到购物车和网络分页 · App Inventor 2 中文网
..., "id", "")
if contains(收藏编号, 编号) { listRemove(收藏编号, indexOf(收藏编号, 编号)) }
else { listAdd(收藏编号, 编号) }
微数据库1.StoreValue("course-favorites-v1", 收藏编号)
if 复选框_收藏.Checked { 筛选商品() }
else { 布局列表框_商品.Refres...
Why doesn't git recognize that my file has been changed, therefore git add not working
...
I had a problem where once upon a time I set the git index to 'assume unchanged' on my file.
You can tell git to stop ignoring changes to the file with:
git update-index --no-assume-unchanged path/to/file
If that doesn't help a reset may be enough for other weird cases.
...
Algorithm to compare two images
...tricky).
http://en.wikipedia.org/wiki/RGB_color_space
http://upvector.com/index.php?section=tutorials&subsection=tutorials/colorspace
Another example involves something called the Hough Transform. This transform essentially decomposes an image into a set of lines. You can then take some of...
How can I open Java .class files in a human-readable way?
....com/p/innlab/downloads/detail?name=jd-gui-0.3.3.windows.zip&can=2&q=" is the best and user friendly option for decompiling .class file....
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How to make a great R reproducible example
...unction you are using. In general, all the code given there fulfills the requirements of a minimal reproducible example: data is provided, minimal code is provided, and everything is runnable. Also look at questions on Stack Overflow with lots of upvotes.
Producing a minimal dataset
For most cases...
JavaScript “new Array(n)” and “Array.prototype.map” weirdness
... and constructs a new array from the results. callback is invoked only for indexes of the array which have assigned values; it is not invoked for indexes which have been deleted or which have never been assigned values." In this case, x's values have not explicitly assigned values, whereas y's were...
How do I remove duplicates from a C# array?
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You could possibly use a LINQ query to do this:
int[] s = { 1, 2, 3, 3, 4};
int[] q = s.Distinct().ToArray();
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Why doesn't java.util.Set have get(int index)?
...ld someone please explain why the java.util.Set interface lacks get(int Index) , or any similar get() method?
18 Answe...