Format currency input with 1000 separator and 2 decimal places upon typing using jQuery/JS?

Question

I have a text input where I want it to format while typing a value allowing 2 decimal places and 1000 separators. It should only allow digits. I have done the following but

Answer 1

$('#price').on('keyup click change paste input', function (event) {
    $(this).val(function (index, value) {
        if (value != "") {
            //return '$' + value.replace(/\D/g, "").replace(/\B(?=(\d{3})+(?!\d))/g, ",");
            var decimalCount;
            value.match(/\./g) === null ? decimalCount = 0 : decimalCount = value.match(/\./g);

            if (decimalCount.length > 1) {
                value = value.slice(0, -1);
            }

            var components = value.toString().split(".");
            if (components.length === 1)
                components[0] = value;
            components[0] = components[0].replace(/\D/g, '').replace(/\B(?=(\d{3})+(?!\d))/g, ',');
            if (components.length === 2) {
                components[1] = components[1].replace(/\D/g, '').replace(/^\d{3}$/, '');
            }

            if (components.join('.') != '')
                return '$' + components.join('.');
            else
                return '';
        }
    });
});