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How to vertically center a inside a div? [duplicate]
...niques to accomplish what you want at the end of the discussion.
(Super-short summary: either set the line-height of the child equal to the height of the container, or set positioning on the container and absolutely position the child at top:50% with margin-top:-YYYpx, YYY being half the known heig...
How can I use different certificates on specific connections?
...ify that I'm not encountering a man-in-the-middle attack, and I need to incorporate this certificate into our code in such a way that the connection to the server will be successful.
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difference between foldLeft and reduceLeft in Scala
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Few things to mention here, before giving the actual answer:
Your question doesn't have anything to do with left, it's rather about the difference between reducing and folding
The difference is not the implementation at all, just look at the signatures.
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sed edit file in place
...g the edited content into a new file and then renaming the new file to the original file name. I tried the -i option but my Solaris system said that -i is an illegal option. Is there a different way?
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What are the best practices for JavaScript error handling?
I'm looking to start making my JavaScript a bit more error proof, and I'm finding plenty of documentation on using try , catch , finally , and throw , but I'm not finding a ton of advice from experts on when and where to throw errors.
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what are the .map files used for in Bootstrap 3.x?
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From Working with CSS preprocessors in Chrome DevTools:
Many developers generate CSS style sheets using a CSS preprocessor, such as Sass, Less, or Stylus. Because the CSS files are generated, editing the CSS files directly is not ...
How do I check if a string is valid JSON in Python?
In Python, is there a way to check if a string is valid JSON before trying to parse it?
4 Answers
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How to make an element in XML schema optional?
...iption" type="xs:string" minOccurs="0" maxOccurs="1" />
if you want 0 or 1 "description" elements, Or
<xs:element name="description" type="xs:string" minOccurs="0" maxOccurs="unbounded" />
if you want 0 to infinity number of "description" elements.
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HTTP 401 - what's an appropriate WWW-Authenticate header value?
The application I'm working on at the moment has a session timeout value. If the user hasn't interacted for longer than this value, the next page they try to load, they will be prompted to log in.
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Find unmerged Git branches?
I have a Git repository with many branches, some of them already merged and some not. Since the number of branches is quite large, how can I determine which branches have not yet been merged? I would like to avoid having to do an "octopus" merge and re-merging branches that have already been merged....