JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" />

JavaScript

$("body").find("input[type=text]").each(function(k,v) {
     $(this).on('keypress', function(event) {
        limit = 7; //for example
        val = $(this).val();
        len = val.length;
        if(len > limit-1) { event.preventDefault(); }
             });
    });