用户输入-Javascript节点js

Question

I'm new to js programming and to stackoverflow, I have a school homework in which i have to make a parser for vcards (the parser works fine, I can extract all the information I need) but in this parser I have to check if the contact(s) have more then two phone numbers and if they do they must choose at most 2 phone numbers. for this I made this function :

function checkPhone() {
//compter le nombre de numéro par contact j
for (i = 1; i < nbrContact; i++) {
    var count = 0;


    //count phone numbers for one contact
    for (u = 0; u < nbrPhones; u++) {
        if (phoneOf(i)[u] != undefined) {
            count++;
        }
    }


    //if a contact has more then 2 phone numbers
    if (count > 2) {
        var question1 = "There are " + count + " phone numbers for the contact " + "\"" + fullName[i] + "\"" + ", Please choose the two you want to keep";
        console.log(question1);

        //print the phone numbers and their type for each contact 
        for (u = 0; u < count; u++) {
            console.log(u  + "      " + phoneOf(i)[u] + " : " + phoneTypeOf(i)[u]);
        }
    }
}

}

PS : the phoneOf() and phoneTypeOf() returns arrays with the phone numbers and their types for each contact

basically this function gives me this for a sample vcard with multiple contacts and two of them have more than 2 phones numbers: (I need 10 reputation to post images please check this link here )

and the user must input a number in this case the variable "u", and i can't figure it out.

Answer 1

var readline = require('readline'); //add this ...
var rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout
});

function checkPhone() {
    //compter le nombre de numéro par contact j
    for (i = 1; i < nbrContact; i++) {
        var count = 0;


        //count phone numbers for one contact
        for (u = 0; u < nbrPhones; u++) {
            if (phoneOf(i)[u] != undefined) {
                count++;
            }
        }


        //if a contact has more then 2 phone numbers
        if (count > 2) {
            var question1 = "There are " + count + " phone numbers for the contact " + "\"" + fullName[i] + "\"" + ", Please choose the two you want to keep";
            console.log(question1);

            //print the phone numbers and their type for each contact 
            for (u = 0; u < count; u++) {
              console.log(u)  + "      " + phoneOf(i)[u] + " : " + phoneTypeOf(i)[u]);
            }
            rl.question('wich numbers would you like to keep?:', function(numbers){
                //parse the numbers maybe with an input 0,1 to keep number 0 and 1...
                rl.close(); //is important to close it
            })

        }
    }
}

Take in count that readline is unstable and is open to changes..

Here is the documentation of readline