当js里有多个export怎么引入？

Question

// mutation-types.js
export const SOME_MUTATION = 'SOME_MUTATION'
export const SOME_MUTATION_1 = 'SOME_MUTATION_1'

我要import引入mutation-types.js，怎么写比较好？

Answer 1

import * as types from 'mutation-types.js'
// types.SOME_MUTATION types.SOME_MUTATION_1

Answer 2

import * as TYPES from './mutation-types';

console.log(TYPES.SOME_MUTATION)

Answer 3

如果你想全部导入：
import * as mutationTypes from './mutation-types';
如果你只是想导入 mutation-types里的几个可以:

import {SOME_MUTATION,SOME_MUTATION_1} from './mutation-types';

Answer 4

你可以吧SOME_MUTATION和SOME_MUTATION_1放在一个export的对象里面呀：

let obj = {
    SOME_MUTATION : 'SOME_MUTATION',
    SOME_MUTATION_1 : 'SOME_MUTATION_1'
}

export obj

Answer 5

http://es6.ruanyifeng.com/#do...

Answer 6

引入
import * as types from '../../mutation-types';
使用
types.SOME_MUTATION
types.SOME_MUTATION_1

Answer 7

import * as types from './types';

然后用 types[导出名] 可以使用