text: 'use strict'
  
  /*eslint-env node*/
  
  const fs = require('fs')
  const UglifyJS = require('uglify-es')
  
  module.exports = function (filePath) {
    const code = fs.readFileSync(filePath, 'utf-8')
    const result = UglifyJS.minify(code)
    if (result.error) return ''
    return result.code
  }
  