todo.js

let todo = [];
let req = prompt("please enter your request");

while(true){
    if( req =="quit"){
        console.log("quittimg app");
        break;
    }
    if (req == "list"){
        console.log("-----------");
        for (let i = 0; i<todo.length; i++){
            console.log(i, todo[i]);
        }
        console.log("-----------");
    } else if (req =="add"){
        let task = prompt("please enter the task you want to add");
        todo.push(task);
        console.log("task added");
    }
    

    else if ( req =="delete"){
        let idx = prompt("please enter the item you want to delete");
        todo.splice(idx, 1);
        console.log("task deleted")
    }
    else {
        console.log("we are ok!!")
    }
    
    req = prompt("please enter your request");
}