JSFiddle - React, Tailwind, and code Playground

HTML

<textarea id="InputAtLast" ></textarea>

JavaScript

$(document).ready(function() {
    $("#InputAtLast").keyup(function(e) {
        this.selectionStart = this.selectionEnd = this.value.length;
        console.log(e);
    });
    $("#InputAtLast").focus(function(e) {
        this.selectionStart = this.selectionEnd = this.value.length;
        
    });
    $("#InputAtLast").click(function(e) {
        this.selectionStart = this.selectionEnd = this.value.length;
        
    });
});