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Stateless vs Stateful - I could use some concrete information

...ew, such case would be considered stateful. If, however, you always pass a token for the user but hold no other state whatsoever, than it's stateless. But feels stateful XD. This is so confusing. – 7hi4g0 Oct 8 '14 at 15:36 ...
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What is the purpose of the “role” attribute in HTML?

...role is not included. Browsers will apply the first recognized role in the token list. <span role="foo link note bar">...</a> Out of the list, only link and note are valid roles, and so the link role will be applied in the platform accessibility API because it comes first. If you use cu...
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How do I declare class-level properties in Objective-C?

...easily enhanced for thread-safe "singleton" behaviour, using dispatch_once token - but otherwise the solution correctly demonstrates the answer – Motti Shneor Jan 28 '19 at 7:15 ...
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Create a CSV File for a user in PHP

... I'll have "SyntaxError: Unexpected token ILLEGAL" error with the line "fopen("php://output", "w");" When I change it to "$fp = fopen('stats.csv', 'w');" it doesn't show error. But then of course it doesn't work. How should I solve it ? – ...
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How to remove old Docker containers

...ntainers in an elegant way. And by Bartosz Bilicki, for Windows: FOR /f "tokens=*" %i IN ('docker ps -a -q') DO docker rm %i For PowerShell: docker rm @(docker ps -aq) An update with Docker 1.13 (Q4 2016), credit to VonC (later in this thread): docker system prune will delete ALL unused da...
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How to insert a line break in a SQL Server VARCHAR/NVARCHAR string

...o use Rob Cooper's answer instead, but with a much longer and more obscure token. – Marcus Downing Apr 21 '15 at 11:40 6 ...
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How do I syntax check a Bash script without running it?

...tax: ["$var" is syntactically a valid command-name expression; similarly, tokens == and "$string" are valid command arguments. (Generally, builtin [ is parsed with command syntax, whereas [[ - as a shell keyword - is parsed differently.) The shell builtin [ does not delegate to the "test program" (...
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Functional programming - is immutability expensive? [closed]

...his algorithm has a very poor cache locality. I don’t know whether smart allocators in modern functional programming languages can mitigate this – but on modern machines, cache misses have become a major performance killer. What’s the conclusion? Unlike others, I wouldn’t say that quickso...
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Uppercase Booleans vs. Lowercase in PHP

... misleading... The actual values themselves (which get compiled down into tokens T_NULL, T_TRUE, and T_FALSE at parse time), are case-insensitive, so using NULL is not actually a "constant" --- unless you make it a constant, using define(). Simply using NULL or TRUE does not mean it's a constant, ...
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Origin is not allowed by Access-Control-Allow-Origin

...ested-With is not allowed by Access-Control-Allow-Headers. Also, if auth token needs to be sent, add this too "Access-Control-Allow-Credentials" -> "true" Also, at client, set withCredentials this causes 2 requests to sent to the server, one with OPTIONS. Auth cookie is not send with it, he...