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SVG fill color transparency / alpha?

...attribute; fill-opacity: This attribute takes a decimal number between 0.0 and 1.0, inclusive; where 0.0 is completely transparent. For example: <rect ... fill="#044B94" fill-opacity="0.4"/> Additionally you have the following: stroke-opacity attribute for the stroke opacity for the enti...
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Swift native base class or NSObject

I tested out some isa swizzling with Swift, and found that it only works when NSObject is a super-class (directly or further up), or by using the '@objc' decoration. Otherwise it will follow a static- and vtable-dispatch style, like C++. ...
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Non-alphanumeric list order from os.listdir()

...y containing the following subdirectories: run01, run02, ... run19, run20, and then I generate a list from the following command: ...
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What is a regular expression for a MAC Address?

... The standard (IEEE 802) format for printing MAC-48 addresses in human-friendly form is six groups of two hexadecimal digits, separated by hyphens - or colons :. So: ^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$ ...
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How to align checkboxes and their labels consistently cross-browsers

...stantly. How do folks around Stack Overflow vertically align checkboxes and their labels consistently cross-browser ? Whenever I align them correctly in Safari (usually using vertical-align: baseline on the input ), they're completely off in Firefox and IE. Fix it in Firefox, and Safari a...
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Cannot read configuration file due to insufficient permissions

...s (Network Services, Local System, etc.), should have permission to access and read web.config file. Update: This updated answer is same as above, but a little longer and simpler and improved. First of all: you don't have to change anything in your config file. It's OK. The problem is with window...
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How do I restore a dump file from mysqldump?

...many databases, the use statements are already in there. To run these commands, open up a command prompt (in Windows) and cd to the directory where the mysql.exe executable is (you may have to look around a bit for it, it'll depend on how you installed mysql, i.e. standalone or as part of a package...
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How do I convert Long to byte[] and back in java

How do I convert a long to a byte[] and back in Java? 12 Answers 12 ...
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CSS Properties: Display vs. Visibility

...n - you can't see it). The display property tells the browser how to draw and show an element, if at all - whether it should be displayed as an inline element (i.e. it flows with text and other inline elements) or a block-level element (i.e. it has height and width properties that you can set, it's...
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What's the difference between “declare class” and “interface” in TypeScript

...eScript, when creating .d.ts source declaration files, which is preferable and why? 4 Answers ...