event-queue

问题 NodeJS uses a event driven model in which only one thread executes the events. I understand the first event executed will be the user JS code. Simple example from nodeJS website of a webserver is below var http = require('http'); http.createServer(function (req, res) { res.writeHead(200, {'Content-Type': 'text/plain'}); res.end('Hello World\n'); }).listen(1337, '127.0.0.1'); console.log('Server running at http://127.0.0.1:1337/'); First event executed will perform the above steps. Later on

问题 I am new to javascript/jquery. I have a simple question one of java script function is running and wanted to see the thread id for that thread. In java we do like Thread.getID();//in java which will print the thread id of running thread. In the similar way what is the function we use to get the running thread id in javscript. Actually what i want is.. In my JavaScript, I have a listener which is listening to the channel. When ever there is a message in the channel, the callback method is

问题 GENERAL GOAL I’d like to know how the following pieces of a javascript environment interconnect as a system . Javascript Engine Event Loop Event Queue We can limit this to a browser environment since node has been covered in another article (here) THINGS I (believe to) UNDERSTAND: Javascript is single threaded and therefore only has one callstack. Javascript environments provide only a few functions that are truly asynchronous. These may include setTimeout(), setInterval(), and I/O function(s