After hitting the start button wait for few seconds...the async tasks have been simulated to finish in 5 seconds so the status will update accordingly. Not having access to a real cursor object..I had to resort of fake cursor like and array. if you want to do it with the async module...
Here the main thread is not blocked while the asynchronous requests wait for a request to respond or a timer to finish. In the meanwhile, execution proceeds with the rest of the program. Once the requests are processed, they are handled elegantly. JavaScript provides you the ability to ...
exit()); // Use a for/await loop to asynchronously read chunks from the input stream for await (let chunk of source) { // Write the chunk and wait until there is more room in the buffer. await write(destination, chunk); } } // Copy standard input to standard output copy(process...
所以从理论上来说,任务循环(job loop)可能导致无限循环(一个任务添加另一个不需要排队的任务,例如Promise中then的无限连接)使得无法进入到下一个tick中。 EX 事件循环和任务的认识 (function test() { setTimeout(function() {console.log(4)}, 0); new Promise(function executor(resolve) { console.log(1)...
destination.on("error", err => process.exit()); // Use a for/await loop to asynchronously read chunks from the input stream for await (let chunk of source) { // Write the chunk and wait until there is more room in the buffer. await write(destination, chunk); } } // Copy ...
var promise1 = rp('https://api.example.com/endpoint1'); var promise2 = rp('https://api.example.com/endpoint2'); // Currently, both requests are fired, concurrently and // now we'll have to wait for them to finish var response1 = await promise1; var response2 = await promise2;...
(when piping output to `head`, e.g.)destination.on("error", err => process.exit());// The chunks we read are unlikely to end with a newline, so each will// probably have a partial line at the end. Track that herelet incompleteLine = "";// Use a for/await loop to ...
执行check任务 uv__run_check(loop); uv__run_closing_handles(loop); // ... r = uv__loop_alive(loop); if (mode == UV_RUN_ONCE || mode == UV_RUN_NOWAIT) break; }我们着重关注的是步骤1, 3, 5, 6, 暂且看做setTimeout的任务,process.nextTick的任务,I/O任务,setImmediate的任务....
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0),0},j={}.hasOwnProperty,t=[],q=t.pop,L=t.push,H=t.push,O=t.slice,P=function(e,t){for(var n=0,r=e.length;n<r;n++)if(e[n]===t)return n;return-1},R="checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|...