Realtime number input validation (playing a little code golf)

validateNumber.js

document.getElementById("numberInput").addEventListener("input", function (e) {
	const numberArr = e.target.value.toString().split("."); // float as string, two values
	if (numberArr.length > 1 && numberArr[1].length > 2)    // checking 2nd value longer than 2, then assigning..
		e.target.value = parseFloat(numberArr[0] + "." + numberArr[1].substring(0,2)); // ..the correct value
});