es6-modules

问题 I am following a tutorial and it says ES modules uses live bindings. It means a feature to support cyclical dependencies. But I don't clearly understand this concept. What does this mean? 回答1: Live bindings is a concept introduced in ES modules. It means that when the exporting module changes a value, the change will be visible from the importer side. This is not the case for CommonJS modules. Module exports are copied in CommonJS. Hence importing modules cannot see changes happened on the

问题 I am following a tutorial and it says ES modules uses live bindings. It means a feature to support cyclical dependencies. But I don't clearly understand this concept. What does this mean? 回答1: Live bindings is a concept introduced in ES modules. It means that when the exporting module changes a value, the change will be visible from the importer side. This is not the case for CommonJS modules. Module exports are copied in CommonJS. Hence importing modules cannot see changes happened on the

问题 I am following a tutorial and it says ES modules uses live bindings. It means a feature to support cyclical dependencies. But I don't clearly understand this concept. What does this mean? 回答1: Live bindings is a concept introduced in ES modules. It means that when the exporting module changes a value, the change will be visible from the importer side. This is not the case for CommonJS modules. Module exports are copied in CommonJS. Hence importing modules cannot see changes happened on the

问题 When importing/exporting data from ES6 modules, mutability of that data appears to be different between named imports and exports. Is there a reason for this or some fundamental difference I'm not understanding? // counter.js export let count = 0; export const incrementCount = () => count += 1; export default count; // main-default.js import count, { incrementCount } from './counter'; console.log(count); // 0 incrementCount(); incrementCount(); console.log(count); // 0 // main-named.js import

问题 When importing/exporting data from ES6 modules, mutability of that data appears to be different between named imports and exports. Is there a reason for this or some fundamental difference I'm not understanding? // counter.js export let count = 0; export const incrementCount = () => count += 1; export default count; // main-default.js import count, { incrementCount } from './counter'; console.log(count); // 0 incrementCount(); incrementCount(); console.log(count); // 0 // main-named.js import

问题 How do you re-export the exports from multiple files in an ESM module without listing each individual export separately? I have a CommonJS module directory that consists of a number of files that I would like to convert to ESM imports/exports. Currently, I have an index.js file that contains this: // this just re-exports everything that the sub-modules export module.exports = [ './mapConcurrent.js', './deferred.js', './utils.js', './rateMap.js', './concurrency.js', './retry.js', ].reduce((obj

问题 How do you re-export the exports from multiple files in an ESM module without listing each individual export separately? I have a CommonJS module directory that consists of a number of files that I would like to convert to ESM imports/exports. Currently, I have an index.js file that contains this: // this just re-exports everything that the sub-modules export module.exports = [ './mapConcurrent.js', './deferred.js', './utils.js', './rateMap.js', './concurrency.js', './retry.js', ].reduce((obj

问题 So today i was trying read all default exports from some directory which has index.js . Try to wrap it inside one object and export it back again. Is there a better way to handle this ? export default (() => require('fs') .readdirSync(__dirname) .filter(fileName => !!/.js$/ig.test(fileName)) .map(fileName => fileName.split('.')[0]) .reduce((defaultExportObj, nextFileName) => { try { return { ...defaultExportObj, [nextFileName]: require(__dirname + `/${nextFileName}`), }; }catch(err) { throw

问题 I'm trying to integrate a Javascript Library (Microsoft Playfab) into my React Native app as per recommended here. The library comes with typings and has the structure as shown here. I have a file playfabWrapper.ts with the following. /// <reference path="../../node_modules/playfab-web-sdk/src/Typings/PlayFab/PlayfabClientApi.d.ts" /> import Playfab from 'playfab-web-sdk/src/PlayFab/PlayFabClientApi.js'; function test(titleId: string, customId: string/*, success: (data: PlayFabClientModels

问题 I'm trying to integrate a Javascript Library (Microsoft Playfab) into my React Native app as per recommended here. The library comes with typings and has the structure as shown here. I have a file playfabWrapper.ts with the following. /// <reference path="../../node_modules/playfab-web-sdk/src/Typings/PlayFab/PlayfabClientApi.d.ts" /> import Playfab from 'playfab-web-sdk/src/PlayFab/PlayFabClientApi.js'; function test(titleId: string, customId: string/*, success: (data: PlayFabClientModels