gistfile1.txt

var name = "John Doe";

function getFirstName(fullName) {
	var next = fullName[0];
	var i = 0;
	var length = fullName.length;
	while (i < length && next !== " ") {
		console.log(fullName[i]);
		i++;
		next = fullName[i];
	}
}

getFirstName(name);