Getting Unexpected Token Export

Question

I am trying to run some ES6 code in my project but I am getting an unexpected token export error.

export class MyClass {
  constructor() {
    console.log("es6");
  }
}

Answer 1

You are using ES6 Module syntax.

This means your environment (e.g. node.js) must support ES6 Module syntax.

NodeJS uses CommonJS Module syntax (module.exports) not ES6 module syntax (export keyword).

Solution:

• Use babel npm package to transpile your ES6 to a commonjs target

or

• Refactor with CommonJS syntax.

Examples of CommonJS syntax are (from flaviocopes.com/commonjs/):

• exports.uppercase = str => str.toUpperCase()
• exports.a = 1