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How does Facebook Sharer select Images and other metadata when sharing my URL?

..."http://ia.media-imdb.com/rock.jpg"/> <meta property="og:image:secure_url" content="https://secure.example.com/ogp.jpg" /> and it should be present inside the <head></head> tag at the top of your page. If these tags are not present, it will look for their older method of sp...
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How to do a batch insert in MySQL

... within parentheses and separated by commas. Example: INSERT INTO tbl_name (a,b,c) VALUES(1,2,3),(4,5,6),(7,8,9); share | improve this answer | follow |...
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Is 1.0 a valid output from std::generate_canonical?

...pen interval [0,1). The documention on cppreference.com of std::generate_canonical confirms this. 3 Answers ...
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What's the difference between Unicode and UTF-8? [duplicate]

...else to store it in binary and get it back. – sliders_alpha Sep 15 '15 at 11:23 4 UTF-8 encoding ...
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SQL selecting rows by most recent date

...ecent date". Modified from http://wiki.lessthandot.com/index.php/Returning_The_Maximum_Value_For_A_Row SELECT t.chargeId, t.chargeType, t.serviceMonth FROM( SELECT chargeId,MAX(serviceMonth) AS serviceMonth FROM invoice GROUP BY chargeId) x JOIN invoice t ON x.chargeId =t.chargeI...
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How can I switch my git repository to a particular commit

...anch (locally): With the commit hash (or part of it) git checkout -b new_branch 6e559cb or to go back 4 commits from HEAD git checkout -b new_branch HEAD~4 Once your new branch is created (locally), you might want to replicate this change on a remote of the same name: How can I push my chang...
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Get position of UIView in respect to its superview's superview

...s you are interested in, you could do this: static func getConvertedPoint(_ targetView: UIView, baseView: UIView)->CGPoint{ var pnt = targetView.frame.origin if nil == targetView.superview{ return pnt } var superView = targetView.superview while superView != baseView{...
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How can I manipulate the strip text of facet_grid plots?

...ulating not the plot title but the text that appears in facet titles (strip_h). 3 Answers ...
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Change R default library path using .libPaths in Rprofile.site fails to work

...ry/Frameworks/R.framework/Versions/2.15/Resources/library" [2] "/Users/user_name/userLibrary" The .libPaths function is a bit different than most other nongraphics functions. It works via side-effect. The functions Sys.getenv and Sys.setenv that report and alter the R environment variables have ...
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Equation for testing if a point is inside a circle

If you have a circle with center (center_x, center_y) and radius radius , how do you test if a given point with coordinates (x, y) is inside the circle? ...