From http://www.kofi.work/blog/developer/arrays-in-javascript/

example of todo list

var Todo = ["buy car"];

var input = prompt("What would you like to do");




while(input!=="quit"){
if(input==="list"){
	
listTodos();
}else if(input ==="new"){
	
addTodo();
}else if(input==="delete"){
 deleteTodo();
}

//ask again for new input 
 input = prompt("What would you like to do");



}
console.log("ok, you quit");

function addTodo(){
	var newTodo = prompt("Enter new todo");
	Todo.push(newTodo);
	console.log("Added Todo");
}

function listTodos(){
	console.log("**********");
	Todo.forEach(function(todo, i){
	console.log(i+" : "+todo);

	});

	console.log("**********");

}

function deleteTodo(){
	var index=prompt("what is the index to delete");

 Todo.splice(index, 1);
 console.log("Deleted Todo");

}