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How to get object length [duplicate]

... Object.keys(a).length : IE8 doesn't support this and still a large user base use IE8. Therefore, I wouldn't rely on this. – lshettyl Apr 12 '13 at 12:24 14 ...
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Legality of COW std::string implementation in C++11

...< *p << '\n'; // p is dangling The point of that example is to demonstrate why GCC's reference counted (COW) string is not valid in C++11. The C++11 standard requires this code to work correctly. Nothing in the code permits the p to be invalidated in C++11. Using GCC's old reference-cou...
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How to add a progress bar to a shell script?

...mplification, but in order to match Daenyth's approach the spinner must be based on \b rather than \r, as it will otherwise only work at the very beginning of a line: while :; do for c in / - \\ \|; do printf '%s\b' "$c"; sleep 1; done; done - or, if displaying the cursor behind the spinner is undes...
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From inside of a Docker container, how do I connect to the localhost of the machine?

... submitted on March the 8th, 2019 and will hopefully be merged to the code base. Until then, a workaround is to use a container as described in qoomon's answer. 2020-01: some progress has been made. If all goes well, this should land in Docker 20.04 TLDR Use --network="host" in your docker run ...
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Android Bitmap to Base64 String

How do I convert a large Bitmap (photo taken with the phone's camera) to a Base64 String? 7 Answers ...
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How to prevent page scrolling when scrolling a DIV element?

... Update 2: My solution is based on disabling the browser's native scrolling altogether (when cursor is inside the DIV) and then manually scrolling the DIV with JavaScript (by setting its .scrollTop property). An alternative and IMO better approach wou...
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Android Facebook style slide

...ct. Also this lib should be compatible this ActionBar pattern, because is based on Activities transactions and TranslateAnimations (not Fragments transactions and custom Views). Right now, the most problem is to make it work well for application, which support both portrait and landscape mode. If ...
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Regular expression to match balanced parentheses

...)]+|\)(?<-c>))*(?(c)(?!))\) Where c is used as the depth counter. Demo at Regexstorm.com Stack Overflow: Using RegEx to balance match parenthesis Wes' Puzzling Blog: Matching Balanced Constructs with .NET Regular Expressions Greg Reinacker's Weblog: Nested Constructs in Regular Expression...
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Hash and salt passwords in C#

...you must convert a hash to its string representation you can use Convert.ToBase64String and Convert.FromBase64String to convert it back. You should note that you cannot use the equality operator on byte arrays, it checks references and so you should simply loop through both arrays checking each byt...
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Check orientation on Android phone

...etOrientation(float[] R, float[] values) computes the device's orientation based on the rotation matrix. – user1914692 Jul 20 '13 at 23:24  |  ...