var server = http.createServer(function(req, res) { res.writeHead(200); res.end('Hello Http'); }); Where do the req and res arguments come from? (abstract example)
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Alexander Bondarenko Alexander Bondarenko
15 6
- This is how the node's engine works; for more information, see the documentation - nodejs.org/api/http.html#http_http_request_options_callback - spectre_it
- 3From where callback receives arguments in JS - From the function that this callback calls. - Grundy
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1 answer
If you are interested in how to create methods that work from callback , then here is an example:
var myHttp = { createServer: function(callback) { var someMyData = { hoho: true, haha: true }; callback(someMyData); } } myHttp.createServer(function(obj) { console.log(obj); }) Also work for example Promise . Frequently enough practice
Vasily Barbashev Vasily Barbashev
3.569 2 9 21
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