Future of NodeJS

Editor's Notes

• #9: Quand vous compilez du TypeScript, vous transformez votre code en JavaScript. Comme TypeScript est trés proche de JavaScript (ES6+), vous pouvez dire que vous Transpillez.
• #16: Démo : Créer un nouveau projet TS avec Node Montrer l’intelissense Monter comment créer un server express rapidement npm install express npm install @types/express import * as express from 'express'; var app = express(); app.use("/", (req, res) => { res.send("Hello World"); }); app.listen(3000); Créer une classe Person pour montrer le passage de E5, ES6 dans TS export class Person{ firstName:string; lastName:string; constructor(fn:string, ln:string, public age=27){ this.firstName = fn; this.lastName = ln; } getFullName(){ return `Full name : ${this.firstName} ${this.lastName} ${this.age} ` } } Montrer comment on lance VS Code avec TS pour l’expérience de débuggage
• #28: import fetch from 'node-fetch’; // Demo 1 créer un waiter à partir d'une promise async function wait(delay:number){ return new Promise((rs, rj) => { setTimeout(rs, delay); }); } // Démo : Ajouter node-fecth app.use("/", async (req, res) => { fetch('http://www.google.com').then((v) => { let responseText = `Hello ${p.getFullName()}<br /> ${v.statusText} `; res.send(responseText); }); })
• #35: Lancer nvs et lancer chakra core Ajouter dans le rendu de la page [${process.execPath}]
• #38: import * as util from "util"; declare module 'util' { export function promisify(fn: Function): (...args: any[]) => Promise<any>; } function breeze(a: number, callback: (err: any, value?: number) => void) { if (a > 10) { callback(undefined, a * a); } else { callback("a must be greater than 10"); } } const breezeAsync = util.promisify(breeze);
• #58: export class Person { firstName: string; lastName: string; constructor(fn: string, ln: string, public age = 27) { this.firstName = fn; this.lastName = ln; } getFullName() { return `Full name : ${this.firstName} ${this.lastName} ${this.age} ` } } export class Kid { } export class adzdazddadadzad { } export class people { kid = () => new Kid(); person = (fn, ln, age) => new Person(fn, ln, age); az = () => new Kid() } var pp = new people(); export default pp;
• #59: export class Person { constructor(fn, ln, age = 27) { this.firstName = fn; this.lastName = ln; this.age = age; } getFullName() { return `Full name : ${this.firstName} ${this.lastName} ${this.age} ` } } export class Kid { } export class adzdazddadadzad { } export class people { person(fn, ln, age) { return new Person(fn, ln, age) } kid() { return new Kid() } ad() { return new adzdazddadadzad(); } } var pp = new people(); export default pp;