The Code is in ES6 - Uglify can't handle ES6 code

[RALifeCoach]

I get the following error running uglify:
ERROR in vendor-2dec535e94d383047c4d.js from UglifyJs
Unexpected token: keyword «const» [vendor-2dec535e94d383047c4d.js:67757,2]

[swiftone]

According to https://www.npmjs.com/package/uglify-js you can use Babel to transpile the code to something uglify can handle. Did you have questions on using Babel?