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In C# what is the difference between ToUpper() and ToUpperInvariant()?
...his is just one example I know off the top of my head... partly because it bit me years ago in Java, where I was upper-casing a string and comparing it with "MAIL". That didn't work so well in Turkey...
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How to resize an image with OpenCV2.0 and Python2.6
...ze(image, (0,0), fx=0.5, fy=0.5)
and this will resize the image to have 100 cols (width) and 50 rows (height):
resized_image = cv2.resize(image, (100, 50))
Another option is to use scipy module, by using:
small = scipy.misc.imresize(image, 0.5)
There are obviously more options you can read...
It is more efficient to use if-return-return or if-else-return?
...if statement and try to rewrite elif trees to use dict. This is getting a bit off-topic though.
– Stephen Ellwood
Nov 29 '18 at 13:02
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How to test if list element exists?
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This is actually a bit trickier than you'd think. Since a list can actually (with some effort) contain NULL elements, it might not be enough to check is.null(foo$a). A more stringent test might be to check that the name is actually defined in t...
Is there a way to get a collection of all the Models in your Rails app?
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Adapting @Andrei's a bit: model_classes = ActiveRecord::Base.connection.tables.collect{|t| t.classify.constantize rescue nil }.compact
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How to Correctly Use Lists in R?
...ncluding forming the base of a data.frame, which is a list of vectors of arbitrary type (but the same length).
Why do these two expressions not return the same result?
x = list(1, 2, 3, 4); x2 = list(1:4)
To add to @Shane's answer, if you wanted to get the same result, try:
x3 = as.list(1:4)
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How to select lines between two marker patterns which may occur multiple times with awk/sed
... '1,/\\begin{document}/d;/\\end{document}/d;p'. (This is cheating a little bit, since the second part does not delete up to the document end, and I would not know how to cut multiple parts as the OP asked for.)
– hans_meine
Dec 8 '16 at 10:50
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Size of font in CSS with slash
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I actually use this quite a bit. The designer I work with always refers to sizing as, for example, "14 over 22". I put it in by accident one day and was surprised/content when it worked.
– Dylan Lukes
Mar 7 '13 at ...
UICollectionView inside a UITableViewCell — dynamic height?
...non-0 value to enable auto layout.
self.tableView.estimatedRowHeight = 10;
}
CREDIT: @rbarbera helped to sort this out
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EF Code First foreign key without navigation property
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Although this post is for Entity Framework not Entity Framework Core, It might be useful for s...