esminify.js

'use strict';

var esprima = require('esprima');
var esmangle = require('esmangle');
var escodegen = require('escodegen');

module.exports = code => {
    let ast = esprima.parse(code);
    let optimized = esmangle.optimize(ast, null);
    optimized = ast;
    esmangle.mangle(optimized, {
        destructive: true,
        distinguishFunctionExpressionScope: false
    });
    return escodegen.generate(optimized, {
        format: {
            compact: true,
            quotes: 'double',
            semicolons: false,
            renumber: true,
            hexadecimal: true,
            escapeless: true,
            parentheses: false
        }
    });
};