Consider the following example code (and maybe I am doing it wrong?)
var FlareCurrency = {
};
export {FlareCurrency};
I have the following task:
gulp.task("compile:add-new-currency-minified", function(){
return gulp.src('src/add-new-currency/**/*.js')
.pipe(babel())
.pipe(concat('Flare-AddNewCurrency.js'))
.pipe(uglify({"preserveComments": "all"}))
.pipe(gulp.dest('dist/minified/'));
});
When I run this I get the following:
"use strict";Object.defineProperty(exports,"__esModule",{value:!0});var FlareCurrency={};exports.FlareCurrency=FlareCurrency;
For the fun of it, I wanted to run it in the console, yes I know it does nothing but I didn't expect to see this:
Uncaught ReferenceError: exports is not defined(…)
The non minified version:
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var FlareCurrency = {};
exports.FlareCurrency = FlareCurrency;
throws the same error. Ideas?
That is not actually a babel issue, you are just trying to run CommonJS code (transpiled from ES6 export
) in the browser without preparation. CommonJS doesn't run on the browser, you need to use a tool to package it for the browser, such as Webpack or Browserify.
Just by coincidence this week I created a small project on Github that shows a setup of Gulp + ES6 code (using export
) + Babel + Webpack: gulp-es6-webpack-example.
In my example you can load JS code on the browser either synchronously (pre-loaded) or asynchronously (lazy-loaded).