const fs = require('fs'); fs.createReadStream('input.txt').pipe(fs.createWriteStream('output.txt')); Node.js 的一些定时功能 setTimeout(callback, delay):延迟指定时间后执行回调。 setInterval(callback, delay):每隔指定时间执行一次回调。 clearTimeout 和 clearInterval:取消定时器。
Event Loop delay 下图展示了一个 node 进程因为同步调用执行太长导致 event loop 被阻塞的情形。 上图中 Y 轴表示以以当前节点为结束点的 event loop 的延时状况,如果图表中出现了水平线则说明 node 已经处于被阻塞的状态,因此获取不到 event_loop 延时信息,这时候我们要结合 cpu 和 memory 的图表进行观察,如...
async function round() { do { await delay(2000); playerInput = input(); calculate(); } while (machineFuel > 0 && height > 0); } function delay(delay) { return new Promise(function(resolve){ setTimeout(resolve, delay); }); } function input(fuel) { fuel = parseInt(prompt("Fuel"...
function( output ) { console.log(output); //output='Synatx error' }); // Example 4 - Restricted code s.run( "process.platform", function( output ) { console.log(output); //output=Null }) // Example 5 - Infinite loop s.run( "while (true) {}", function( output ) { console....
Event Loop Explained When Node.js starts, it initializes the event loop, processes the provided input script (or drops into theREPL, which is not covered in this document) which may make async API calls, schedule timers, or callprocess.nextTick(), then begins processing the event loop. ...
Update particle count to 500k in WebGPU compute example. #30455 (@Makio64) Adjust volume instances demo to write to depth. #30464 (@gkjohnson) Fix time usage. #30498 (@Mugen87) Addons 3MFLoader Fix parsing of assets with sub models. #30491 (@Jack-J-Young) AfterImageNode Refactor co...
ExampleIn main.js:const path = require('path'); const Piscina = require('piscina'); const piscina = new Piscina({ filename: path.resolve(__dirname, 'worker.js') }); (async function() { const result = await piscina.run({ a: 4, b: 6 }); console.log(result); // Prints 10 }...
easy-vue a easy example using the vue to implement easy web with vue 2.0, vuex 2.0, vue-router 2.0, vue-infinite-scroll 2.0, vue-progressbar 2.0 by TIGERB Vuex Events Messaging Demo by Metric Loop vue-memo a simple demo build with Vue.js(>2.x.), vue-router(>2.x.), vuex(>2....
An example of sequential execution flow with three tasks 上述执行流程有着不同形式的变种: 顺序执行一系列已知的任务,不需要在它们之间传递数据 前一个任务的输出作为后一个任务的输入(chain、pipeline、waterfall) 迭代任务集合,同时在每个元素上一个接一个地运行异步任务 ...
setTimeout(callback,delayMillSeconds,[args])// callback 为回调函数 setTimeout 方法的使用案例; setTimeout((text)=>{console.log(text);},500,"超时计时器 2 触发并停止"); 或: functiontimeoutExample(text:string){console.log(text);}setTimeout(timeoutExample,500,"超时计时器 1 触发并停止");...