CODEWITHSUNDEEP
javascriptnode.js
amarjeet singh
amarjeet singh

Reputation: 165

facing error while implementing nodejs es 6

i have creates a folder named node_esm and run commands on terminal npm init -y. create a package.json. then install two packages ordinaland date-names by running commands npm install ordinal and npm install date-nameswhich created a folder named node_modules. after that created a file name index.mjs and execute it through terminal by using --experimantal-modules flag and facing the an error.

index.mjs file is :

  import ordinal from "ordinal";
  import {days, months} from "date-names";

  console.log(ordinal);
  console.log(months);

in ordinal folder there is two js files index.js and indicator.js

index.js file is: var indicator = require('./indicator')

  function ordinal (i) {
    if (typeof i !== 'number') throw new TypeError('Expected Number, got ' +(typeof i) + ' ' + i)
    return i + indicator(i) 
  }

  ordinal.indicator = indicator
  module.exports = ordinal

indicator.js file is:

  module.exports = function indicator (i) {
   var cent = i % 100
   if (cent >= 10 && cent <= 20) return 'th'
   var dec = i % 10
   if (dec === 1) return 'st'
   if (dec === 2) return 'nd'
   if (dec === 3) return 'rd'
   return 'th'
   }

in date-names folder index.js file is:

   "use strict";
   module.exports = require('./en');

and en.js file is: 

 "use strict";

 module.exports = {
 __locale: "en",
 days: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
 abbreviated_days: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
 months: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
 abbreviated_months: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
 am: 'AM',
 pm: 'PM'
 };

and the error is:

   (node:8402) ExperimentalWarning: The ESM module loader is experimental.
   file:///home/amarjeet/eloquentjs/ch-10%20modules_1/format-date.mjs:4
   import {days, months} from "date-names";
    ^^^^
   SyntaxError: The requested module 'date-names' does not provide an export named 'days'
   at ModuleJob._instantiate (internal/modules/esm/module_job.js:80:21)

tell me what`s wrong i am doing. i am using node version 10.13.0

Upvotes: 1

Views: 59

Answers (1)

Aritra Chakraborty
Aritra Chakraborty

Reputation: 12542

Import + destructuring using CommonJS export was removed because of confusion between valid and invalid Es6 syntax.

You can check more about these here or here

In the meantime, what you can do is (as the link suggests)

import data from './Export.js';
const {key} = data;

*[feel free to edit this answer for more accurate information]

Upvotes: 1

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