How do I perform an export that is compatible with ES5 and ES6?

Question

I'm writing a "class" in node

// mymodule/index.js

function MyClass() {}
MyClass.prototype.method1 = function() {..}

usually I do

module.exports = MyClass

but I want my class available for both syntax

var MyClass = require('mymodule')

and

import {MyClass} from 'mymodule'

Which is the correct way to do it?

Answer 1

As far as writing an export that is compatible for both ES5 and ES6, Babel already takes care of that for you. (As communicated in the comments to your question. I'm only clarifying for those who got lost in the dialog.)

module.exports = MyClass

will work with both var MyClass = require('mymodule') and import MyClass from 'mymodule

However, to be clear, the actual syntax you asked about:

import {MyClass} from 'mymodule'

means something different from

import MyClass from 'mymodule'

For the latter, you would have to export it as: module.exports.MyClass = MyClass, and for ES5 modules it would have to required as var MyClass = require('mymodule').MyClass

Answer 2

Both ways are correct, but try to import in es6 like this without the brackets:

import MyClass from 'mymodule'

Otherwise you would have to export your function like this:

module.exports.MyClass = MyClass

and than import it like this:

import { MyClass } from 'mymodule'