Modern Browser Support

In build directory you can find several files

jodit.css
jodit.js   

jodit.es2018.css
jodit.es2018.js

jodit.es2018.min.css 
jodit.es2018.min.js  
          
jodit.min.css        
jodit.min.js

jodit.min.js - This file contains usual ES5 syntax and can be used in IE11, it has polyfills for compatable with ie11
jodit.min.es2018.js - This file contains ES2018 syntax(async,await, arrow function etc.) and can be used in modern browsers, it does not have any polyfills. This file is 79kb smaller than the es5 version.

Use jodit.min.es2018.js if you use Jodit only in moder browsers.