Answer1215

摘要： Particularly if you use a bundler like webpack, parcel or snowpack, you may end up importing things that aren’t .js or .ts files For example, maybe yo 阅读全文

摘要： Node.js 13.2.0 introduced support for native ES modules. This means you can natively run code containing thing like import { Foo } from 'bar', use top 阅读全文

摘要： Let's say we need to use a library with commonJS code. class Melon { cutIntoSlices() { } } module.exports = Melon Then we want to import this inside o 阅读全文

摘要： //////////////////////////////////////////////////////// // @filename: berries/raspberry.ts export class Raspberry { constructor(public color: 'red' | 阅读全文

摘要： const NAME = "Matt"; TypeScript is telling us we can't redeclare the name variable because it has already been declared inside of lib.dom.d.ts. The in 阅读全文

摘要： Example code: const routingConfig = { routes: [ { path: "home", component: "HomeComponent", }, { path: "about", component: 12, }, { path: "contact", c 阅读全文

摘要： Creational patterns provide object creation mechanisms that increase flexibility and reuse of existing code. Factory method: Provides an interface for 阅读全文

摘要： class Fish { swim(): void {} } class Bird { fly(): void {} } switch(true) { case val instanceof Bird: val.fly() break case val instanceof Fish: val.sw 阅读全文

摘要： Normally you need to put require("dotenv").config() console.log(process.env.TEST) to access env vars WIth --node-fileflag you don't need to do that an 阅读全文

摘要： const interValueFromColor = <N extends string, C extends string, T extends number>(colorTag: `${N}-${C}-${T}`) => { const [namespace, color, tone] = c 阅读全文