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Do I use , , or for SVG files?

...ectRatio(none))" />", which lets you control the aspect ratio, viewBox, etc the same as with inline SVG definitions. Further reading on scaling - css-tricks.com/scale-svg – brichins Jun 16 '16 at 17:04 ...
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Differences between Perl and PHP [closed]

... collections (hashes). In PHP, they're the same type: an associative array/ordered map. Perl arrays aren't sparse: setting an element with index larger than the current size of the array will set all intervening elements to undefined (see perldata). PHP arrays are sparse; setting an element won't se...
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How can I detect the touch event of an UIImageView?

...as the button image. But if you want finer-grain control over taps, moves, etc. this is the way to go. You'll also want to look at a few more things: Override canBecomeFirstResponder and return YES to indicate that the view can become the focus of touch events (the default is NO). Set the userInt...
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What is the difference between public, private, and protected?

...me why someone would use these? You have explained perfectly how they work etc.. I just would like to know the benefits of use for each of these. Thank you – JamesG Mar 18 '17 at 11:12 ...
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Finding all objects that have a given property inside a collection [duplicate]

...I didn't use Comparator is that a Comparator is supposed to impose a total ordering on the collection, whereas all we need is a boolean test of some condition. The property/ies being checked might not have any meaningful order. – David Z Feb 25 '09 at 19:26 ...
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Tool to convert Python code to be PEP8 compliant

...le Article on RealPython https://realpython.com/python-pep8/ Linters (in order of popularity): mypy https://github.com/python/mypy linter for type checks (PEP-484) pycodestyle https://github.com/PyCQA/pycodestyle - good one using PEP-8, very popular. Often used alongside of pylint and flake8 (si...
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Determine project root from a running node.js application

...y on a global variable, which means that you can't easily reuse components/etc. process.cwd() This returns the current working directory. Not reliable at all, as it's entirely dependent on what directory the process was launched from: $ cd /home/demo/ $ mkdir subdir $ echo "console.log(process.c...
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What exactly is RESTful programming?

... } Notice that we are using different HTTP verbs (GET, PUT, POST, DELETE etc.) to manipulate these resources, and that the only knowledge we presume on the client's part is our media definition. Further reading: The many much better answers on this very page. How I explained REST to my wife. ...
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Reading specific lines only

...ked above: >>> import linecache >>> linecache.getline('/etc/passwd', 4) 'sys:x:3:3:sys:/dev:/bin/sh\n' Change the 4 to your desired line number, and you're on. Note that 4 would bring the fifth line as the count is zero-based. If the file might be very large, and cause problems...
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String formatting in Python 3

...ument (using named arguments instead of positional ones, accessing fields, etc) and many format options as well (padding the number, using thousands separators, showing sign or not, etc). Some other examples: "({goals} goals, ${penalties})".format(goals=2, penalties=4) "({goals} goals, ${penalties}...