大约有 45,000 项符合查询结果(耗时:0.0568秒) [XML]

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Is there some way to PUSH data from web server to browser?

...'s called Reverse Ajax or Comet. Comet is basically an umbrella term for different ways of opening long-lived HTTP requests in order to push data in real-time to a web browser. I'd recommend StreamHub Push Server, they have some cool demos and it's much easier to get started with than any of the o...
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How do you use variables in a simple PostgreSQL script?

...ple does not work. ERROR: query has no destination for result data HINT: If you want to discard the results of a SELECT, use PERFORM instead. CONTEXT: PL/pgSQL function inline_code_block line 7 at SQL statement – Jasen Dec 31 '16 at 1:34 ...
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Declaring a custom android UI element using XML

...or refuses to use the values for all android: attributes. I would like to know if it is a feature or bug – deej Mar 28 '13 at 0:17 ...
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Import CSV to mysql table

... Do you know if there is a way to set file path to csv file? – JasonDavis Dec 23 '15 at 4:03 ...
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How to return 2 values from a Java method?

...te - presumably the pair of numbers has some meaning, and it would be nice if the return type represented this. – Armand May 14 '10 at 11:50 3 ...
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Amazon Interview Question: Design an OO parking lot [closed]

...ull, empty and also be able to find spot for Valet parking. The lot has 3 different types of parking: regular, handicapped and compact. ...
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Secure random token in Node.js

... If you're looking for the above as a bash one-liner, you can do node -e "require('crypto').randomBytes(48, function(ex, buf) { console.log(buf.toString('hex')) });" – Dmitry Minkovsky Fe...
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How to generate a create table script for an existing table in phpmyadmin?

... Is there a way to specify which database, for example if you have multiple databases that contain the same tablename? Or is that not possible? – Davos Feb 20 '18 at 6:03 ...
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A monad is just a monoid in the category of endofunctors, what's the problem?

...nsformation, μ : T × T → T, where × means functor composition (μ is known as join in Haskell) A natural transformation, η : I → T, where I is the identity endofunctor on X (η is known as return in Haskell) ...satisfying these laws: μ ∘ Tμ = μ ∘ μT μ ∘ Tη = μ ∘ ηT = 1 (the...
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sed or awk: delete n lines following a pattern

... What's happening is similar but slightly different in each case. In the first recipe, /pattern/,+5 defines a range, which starts with a line containing "pattern" (/pattern/) and ends 5 lines later (+5). The last character d is a command to run on each line in that ...