使用节点意外导入令牌

Question

I have a simple file numeral.js that I'm trying to test with mocha running through node.

An afternoon of searching however has left me at the first hurdle.

Numeral.js:

"use strict";
exports.__esModule = true;
exports.numeral = function (id) {
    return "";
};

test.js

import {numeral} from './numeral.js'

var assert = require('assert');

describe('Array', function() {
  describe('#indexOf()', function() {
    it('should return -1 when the value is not present', function() {
      assert.equal(-1, [1,2,3].indexOf(4));
    });
  });

});

I navigate to the folder (that has mocha set up as test in the packages.json) and run npm test . That throws out a:

C:\Users\matt\Documents\mocha\test\test.js:1
(function (exports, require, module, __filename, __dirname) { import {numeral} from './numeral.js'
                                                              ^^^^^^
SyntaxError: Unexpected token import

How am I going so wrong?

Answer 1

Nodejs does not support import and export.

So, you have to use babel to covert your es6 code to es5 version if you like to use import/export. take a look at this issue in github