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How to define “type disjunction” (union types)?

...str") case _: Int => println("int") } } And that's it. You can call foo(5) or foo("abc"), and it will work, but try foo(true) and it will fail. This could be side-stepped by the client code by creating a StringOrInt[Boolean], unless, as noted by Randall below, you make StringOrInt a seale...
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What is the use of the @ symbol in PHP?

...om error handler function with set_error_handler() then it will still get called, but this custom error handler can (and should) call error_reporting() which will return 0 when the call that triggered the error was preceded by an @... ...
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Node.js project naming conventions for files & folders

... your tests An example which uses this setup is nodejs-starter. I personally changed this setup to: / /etc - contains configuration /app - front-end javascript files /config - loads config /models - loads models /bin - helper scripts /lib - back-end express files /config - lo...
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How do I delete all messages from a single queue using the CLI?

How do I delete all messages from a single queue using the cli? I have the queue name and I want to clean it. 9 Answers ...
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Angular JS break ForEach

...r for it does not break the forEach loop. It is merly a way to not execute all logic inside the loop. – Nebulosar Apr 8 at 13:42 add a comment  |  ...
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How can I use Timer (formerly NSTimer) in Swift?

...syntax (iOS 10+) let timer = Timer(timeInterval: 0.4, repeats: true) { _ in print("Done!") } // Swift >=3 selector syntax let timer = Timer.scheduledTimer(timeInterval: 0.4, target: self, selector: #selector(self.update), userInfo: nil, repeats: true) // Swift 2.2 selector syntax ...
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Check if two unordered lists are equal [duplicate]

...has a built-in datatype for an unordered collection of (hashable) things, called a set. If you convert both lists to sets, the comparison will be unordered. set(x) == set(y) Documentation on set EDIT: @mdwhatcott points out that you want to check for duplicates. set ignores these, so you need ...
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Retrieve database or any other file from the Internal Storage using run-as

...nly copy DBs from the Debug variant of your app. If this happens, just install the debug variant and try the command again. Hope this helps someone. – Aonghus Shortt Apr 14 '17 at 18:02 ...
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IIS_IUSRS and IUSR permissions in IIS8

... In short - you do not need to edit any Windows user account privileges at all. Doing so only introduces risk. The process is entirely managed in IIS using inherited privileges. Applying Modify/Write Permissions to the Correct User Account Right-click the domain when it appears under the Sites ...
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Remove duplicate lines without sorting [duplicate]

...e unique lines. This of course could end up being the whole file though if all the lines are unique. – deltaray Jul 11 '18 at 17:33  |  show 1...