some es6 features are not understood by grunt uglify js?

Question

I used grunt-uglify in my project and I\'m working with es6. for some es6 features, such as fat arrow function, it\'s throwing an error. I think the uglify don\'t understant

Answer 1

A Grunt plugin ES6 parser, mangler/compressor and beautifier toolkit for ES6+ is now available:

https://github.com/adascal/grunt-terser

Great job, it just works as expected.

The harmony branch of grunt-contrib-uglify is deprecated, it's not a sustainable solution.