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How do I count unique values inside a list

... Not an answer to Joel's question, but exactly what I was looking for, thanks! – Huw Walters Sep 5 '15 at 7:29 ...
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Where are the PostgreSQL logs on macOS?

... On OS X, if you're using the EnterpriseDB installation of PostgreSQL, your log files will be in /Library/PostgreSQL/8.4/data/pg_log Of course, you'll want to substitute 8.4 for whichever version number you're running. ...
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A gentle tutorial to Emacs/Swank/Paredit for Clojure

...e, Paredit and, of course, the Clojure jar for a start, then perhaps some extras among which Leiningen would perhaps be the most notable. Once you do set it all up, you'll have -- within Emacs -- all the workflow / editing features you mention in the question. Basic setup: The following are to gre...
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Remove Project from Android Studio

...one know how to remove a project from Android Studio in an attempt to re- export it from Eclipse? 14 Answers ...
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Stopping scripters from slamming your website

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How do I rotate the Android emulator display? [duplicate]

... Linux: CTRL + F12 Mac: Fn + CTRL + F12 Windows: Left CTRL + F11 or Left CTRL + F12 share | improve this answer | ...
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What does auto&& tell us?

...ll accept any initializer regardless of whether it is an lvalue or rvalue expression and I will preserve its constness. This is typically used for forwarding (usually with T&&). The reason this works is because a "universal reference", auto&& or T&&, will bind to anything. Y...
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Where to find extensions installed folder for Google Chrome on Mac?

...of Chrome's profile directory are defined at http://www.chromium.org/user-experience/user-data-directory. For Chrome on Mac, it's ~/Library/Application\ Support/Google/Chrome/Default The actual location can be different, by setting the --user-data-dir=path/to/directory flag. If only one user is r...
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How can I exclude all “permission denied” messages from “find”?

...cal. * If your system is configured to show localized error messages, prefix the find calls below with LC_ALL=C (LC_ALL=C find ...) to ensure that English messages are reported, so that grep -v 'Permission denied' works as intended. Invariably, however, any error messages that do get displayed will ...
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Why Does OAuth v2 Have Both Access and Refresh Tokens?

...nal (this was probably still being debated when catchdave answered). For example, MAC tokens (currently under development), provide the ability to sign the request with a private key so that SSL is not required. Refresh tokens thus become very important since you want to have short-lived mac token...