我目前通过webpack/babel在React应用程序中使用ES6。 我使用索引文件收集一个模块的所有组件并导出它们。不幸的是,它是这样的:

import Comp1_ from './Comp1.jsx';
import Comp2_ from './Comp2.jsx';
import Comp3_ from './Comp3.jsx';

export const Comp1 = Comp1_;
export const Comp2 = Comp2_;
export const Comp3 = Comp3_;

所以我可以很好地从其他地方导入它,像这样:

import { Comp1, Comp2, Comp3 } from './components';

显然这不是一个很好的解决方案,所以我在想,有没有其他的办法。我似乎不能直接导出导入的组件。


当前回答

默认的出口

// Default export (recommended)
export {default} from './module' 

// Default export with alias
export {default as d1} from './module' 

所有的出口

// In >ES7, it could be
export * from './module'

// In >ES7, with alias
export * as d1 from './module'

函数名称导出

// export by function names
export { funcName1, funcName2, …} from './module'

// export by aliases
export { funcName1 as f1, funcName2 as f2, …} from './module'

解构对象导出

// export destructured object
export const { myVar, myFunction } = myObjectWithEverything

// export destructured object, with renaming
export const { v1: myVar, f1: myFunction } = myBigObject

与数组

// it works with array as well
export const [ funcName1, funcName2 ] = myBigArray

更多信息:https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/export

其他回答

多年来,我一直在寻找如何在模块化JavaScript中同时导出命名导出和默认导出模块。经过大量的试验,我找到的解决方案非常简单和有效。

// index.js
export { default as Client } from "./client/Client.js";
export { default as Events } from "./utils/Events.js";

// Or export named exports
export { Client } from "./client/Client.js";
export { Events } from "./utils/Events.js";

export * as default from "./index.js";

这将允许以两种方式导入每个导出的模块:

// script.js
import { Client } from "index.js";
new Client();

import module from "index.js";
new module.Client();

// You could also do this if you prefer to do so:
const { Client } = module;

你可以随意摆弄它,让它适合你的需要,但它适合我。希望能有所帮助!

默认的出口

// Default export (recommended)
export {default} from './module' 

// Default export with alias
export {default as d1} from './module' 

所有的出口

// In >ES7, it could be
export * from './module'

// In >ES7, with alias
export * as d1 from './module'

函数名称导出

// export by function names
export { funcName1, funcName2, …} from './module'

// export by aliases
export { funcName1 as f1, funcName2 as f2, …} from './module'

解构对象导出

// export destructured object
export const { myVar, myFunction } = myObjectWithEverything

// export destructured object, with renaming
export const { v1: myVar, f1: myFunction } = myBigObject

与数组

// it works with array as well
export const [ funcName1, funcName2 ] = myBigArray

更多信息:https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/export

此外,请记住,如果您需要一次导出多个函数,例如您可以使用的操作

export * from './XThingActions';

您可以轻松地重新导出默认导入:

export {default as Comp1} from './Comp1.jsx';
export {default as Comp2} from './Comp2.jsx';
export {default as Comp3} from './Comp3.jsx';

还有一个ES7 ES8的提议,将允许您从“…”;

太晚了,但我想分享我解决它的方法。

有模型文件,有两个命名导出:

export { Schema, Model };

并有控制器文件,它有默认的导出:

export default Controller;

我在索引文件中以这样的方式暴露:

import { Schema, Model } from './model';
import Controller from './controller';

export { Schema, Model, Controller };

假设我想导入所有的:

import { Schema, Model, Controller } from '../../path/';