JavaScript is backwards compatible. What you wrote in JavaScript 10 years ago will still work today in all JavaScript engines. Because you mentioned Babel I su

JavaScript is backwards compatible. What you wrote in JavaScript 10 years ago will still work today in all JavaScript engines. Because you mentioned Babel I suspect you actually didn't use JavaScript - but a language that compiled to JavaScript. And this complicate things a lot and is probably the root cause of your wasted hours. The time you save upfront by using some framework you pay back later in maintenance once new versions are released and things get deprecated. In JavaScript itself nothing will ever get deprecated.