Capitalize first character of user input in real time with JQuery

Question

I am trying to auto-capitalize the first character of a textarea/input that the user inputs. The first attempt looked like this:

$(document).ready(function() {
         


        

Answer 1

You can use a jQuery function:

$.fn.CapitalizeFirst = function () {
    return this.each(function () {
        $(this).on('keydown', function (event) {
            if (this.selectionStart == 0 && event.keyCode >= 65 && event.keyCode <= 90 && !(event.shiftKey) && !(event.ctrlKey) && !(event.metaKey) && !(event.altKey)) {
                var $t = $(this);
                event.preventDefault();
                var char = String.fromCharCode(event.keyCode);
                $t.val(char + $t.val().slice(this.selectionEnd));
                this.setSelectionRange(1, 1);
            }
        });
    });
};