Codecademy: Codeyear Splitting Names (Part 3)

//sample solution

var name = "John Doe";
var getFirstName = function(fullName){
var firstName = "";
var next = fullName[0];
var i = 0;
var length = fullName.length;
while(i<length){
if(next===" "){
break;
} else {
//console.log(fullName[i]);
firstName+=fullName[i];
i++;
next = fullName[i];
}
}
return firstName;
};
//test
console.log(getFirstName(name));