As a web developer of too many years, I just can't get my head around the need for these kinds of reactive libraries. Re: the first example, the reactive count

As a web developer of too many years, I just can't get my head around the need for these kinds of reactive libraries. Re: the first example, the reactive counter. First of all it mixes content and JavaScript which is a sore subject but personally I prefer to keep the two clearly separated. Secondly it's a whole bunch of new syntax to achieve what can be done in fewer lines of JavaScript or jQuery and without mixing content with logic: https://jsfiddle.net/tu1cqh8y/ https://jsfiddle.net/tu1cqh8y/