具有6to5的ES6默认模块语法

Question

Is it possible to recreate the following with ES6 module syntax?

var foo = {};
module.exports = foo;

ES6 has support for adding the declarative keyword to the expression, like so:

export var foo = 'bar';

However, when run through 6to5 , this generates:

var foo = exports.foo = 'bar';

Is it possible to use this syntax in conjunction with the default keyword, in order to generate the top code snippet?

Answer 1

You must export foo entity with default keyword:

var foo = {};
export default foo;

It will generate exactly what do you want.

PS : You can export only one default variable per module and can import it without curly brackets:

import foo from 'some_module';

If you're exporting multiple variables:

export var foo = 10;
export var boo = 'something';

Then you must import them using curly brackets:

import { foo, boo } from 'some_module';

In that case 6to5 will generate a little more complicated result than your example.

More about ES6 modules read here