Playing Audio Using Keystrokes: Is It Possible?

Annabelle5893 · May 17, 2023

I'm wondering, how would I make an app that plays audio files using the keys on the number pad? Specifically, I want to make an app that triggers "Rotary Pulse 1" by pressing 1 on the numeric keypad, all the way up to "Rotary Pulse 0" on the 0 key. A dial tone will be toggled on by pressing the spacebar, which will begin with a "receiver pickup" noise. The dial tone turns off when digits are dialed via the numeric keypad. If you press the spacebar either when the dial tone is on, or after dialing a number, a "Receiver Hang Up" noise will be triggered. With the rotary dial sounds, the dial turning to the fingerhole is triggered at key down, and the release of the dial returning to the resting position will be triggered by releasing of the number corresponding to the fingerhole (1, 2, 3, 4, 5, 6, 7, 8, 9, 0). This will be accompanied by the internal sound of the dial pulses as heard in a telephone. What is the code I would use to make this audio app using HTML?

Antero360 · Jul 28, 2023

Annabelle5893 said:
Would those adjustments be on the lines where you say, "What are we missing here?"?

In part, yes. The other adjustments come in the form of parameters. I do see you reference a few variables in places where they may not have visibility. In cases like this, you can either make the variable a global variable, or you can pass it to the function that needs it as a parameter.

Annabelle5893 · Jul 28, 2023

Antero360 said:
In part, yes. The other adjustments come in the form of parameters. I do see you reference a few variables in places where they may not have visibility. In cases like this, you can either make the variable a global variable, or you can pass it to the function that needs it as a parameter.

What would an example of that be in code?

Antero360 · Jul 28, 2023

Annabelle5893 said:
What would an example of that be in code?

JavaScript:

function dial1() {
    if(allowDial) {
        numberDial();
        number=number+"1";
        var tone1=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%201.ogg');
        tone1.play();
    //what are we missing here?
}


//since the variable "allowDial" is not defined inside of dial1 function, if it's in another function, then call dial1() and pass the variable as a parameter
//make sure you add a parameter to the function definition to reflect this
function dial1(allowDial) {
    if(allowDial) {
        numberDial();
        number=number+"1";
        var tone1=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%201.ogg');
        tone1.play();
    //what are we missing here?
}

function tempFunc () {
    var dialIsAllowed = false;
    dial1(dialIsAllowed);
}

Annabelle5893 · Jul 28, 2023

Antero360 said:

JavaScript:

function dial1() {
    if(allowDial) {
        numberDial();
        number=number+"1";
        var tone1=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%201.ogg');
        tone1.play();
    //what are we missing here?
}


//since the variable "allowDial" is not defined inside of dial1 function, if it's in another function, then call dial1() and pass the variable as a parameter
//make sure you add a parameter to the function definition to reflect this
function dial1(allowDial) {
    if(allowDial) {
        numberDial();
        number=number+"1";
        var tone1=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%201.ogg');
        tone1.play();
    //what are we missing here?
}

function tempFunc () {
    var dialIsAllowed = false;
    dial1(dialIsAllowed);
}

So "AllowDial" is a function, and "DialIsAllowed" is a variable? I'm confused! Aren't they both the same parameter?

Antero360 · Jul 28, 2023

Annabelle5893 said:
So "AllowDial" is a function, and "DialIsAllowed" is a variable? I'm confused! Aren't they both the same parameter?

never said to convert "allowDial" to a function, now did I? 🙂
And to answer your question, yes, essentially, both are the same. but different context.

Antero360 · Jul 28, 2023

JavaScript:

//here, since "allowDial" is not defined within the function, js will assume that you are referencing a variable called "allowDial" that was defined earlier, at the top of the //script. If js cannot find that variable, then you will get an error telling you that it has not been defined. 
function dial1() {
    if(allowDial) {
        numberDial();
        number=number+"1";
        var tone1=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%201.ogg');
        tone1.play();
    //what are we missing here?
}


//here, you are declaring that your function, dial1(), is going to need some kind of parameter to be passed into its body so that the logic within works correctly.
//here, "allowDial" is part of the function definition, and has no value yet. The value comes in when you make the call to dial1 and pass whatever data you are intending //to pass
function dial1(allowDial) {
    if(allowDial) {
        numberDial();
        number=number+"1";
        var tone1=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%201.ogg');
        tone1.play();
    //what are we missing here?
}

function tempFunc() {
    //here "dialIsAllowed" is just a variable to hold the data that you are going to pass to dial1
    var dialIsAllowed = false;
    dial1(dialIsAllowed);
}

Annabelle5893 · Jul 28, 2023

I wonder if I could name the function something like: dialPad, or rotaryDial, depending on what kind of phone I want to set up in my app.
So for example:

JavaScript:

function dialPad () {
    var dialIsAllowed = true;
    dial1(dialIsAllowed);
    
    //isn't this already defined inside of dial1()?
    var tone1=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%201.ogg');
    tone1.play();
}

Antero360 · Jul 28, 2023

Annabelle5893 said:
I wonder if I could name the function something like: dialPad, or rotaryDial, depending on what kind of phone I want to set up in my app.
So for example:

JavaScript:

function dialPad () { var dialIsAllowed = true; dial1(dialIsAllowed); //isn't this already defined inside of dial1()? var tone1=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%201.ogg'); tone1.play(); }

Please look at the feedback I left

Annabelle5893 · Jul 29, 2023

Antero360 said:
Please look at the feedback I left

I think I might have an idea of what was missing. How's this look to you?

JavaScript:

function ringTelephone(){
    if(!hasTelephoneBeenAnswered = false;) {
        ringRing.play();
        ringRing.currentTime=0;
    }
    
    if(isOffHook = false;) {
        ringRing.play();
    }
    if(allowDial = false;) {
    callIncoming=true;
    setInterval(ringTelephone,5500);
}

function dial1() {
    if(allowDial = true;) {
        numberDial();
        number=number+"1";
        var tone1=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%201.ogg');
        tone1.play();
}

function dial2() {
    if(allowDial = true;) {
        numberDial();
        number=number+"2";
        var tone2=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%202.ogg');
        tone2.play();
}

function dial3() {
    if(allowDial = true;) {
        numberDial();
        number=number+"3";
        var tone3=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 3.ogg');
        tone3.play();
}

function dial4() {
    if(allowDial = true;) {
        numberDial();
        number=number+"4";
        var tone4=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 4.ogg');
        tone4.play();
    //what are we missing here?
}

function dial5() {
    if(allowDial = true;) {
        numberDial();
        number=number+"5";
        var tone5=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 5.ogg');
        tone5.play();
}

function dial6() {
    if(allowDial = true;) {
        numberDial();
        number=number+"6";
        var tone6=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 6.ogg');
        tone6.play();
}

function dial7() {
    if(allowDial = true;) {
    numberDial();
    number=number+"7";
    var tone7=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 7.ogg');
    tone7.play();
}

function dial8() {
    if(allowDial = true;) {
        numberDial();
        number=number+"8";
        var tone8=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 8.ogg');
        tone8.play();
}

function dial9() {
    if(allowDial = true;) {
        numberDial();
        number=number+"9";
        var tone9=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 9.ogg');
        tone9.play();
}

function dialStar() {
    if(allowDial = true;) {
        numberDial();
        number=number+"*";
        var toneStar=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial Star.ogg');
        toneStar.play();
}

function dial0() {
    if(allowDial = true;) {
        numberDial();
        number=number+"0";
        var tone0=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 0.ogg');
        tone0.play();
    }
}

function dialPound(){
    if(allowDial){
        numberDial();
        number=number+"#";
        var tonePound=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial Pound.ogg');
        tonePound.play();
    //what are we missing here?
}

document.onkeydown = function (event) {
    if(event.keycode == 49 || event.keycode == 97) {
        dial1();
    }
    if(event.keycode == 50 || event.keycode == 98) {
        dial2();
    }
    if(event.keycode == 51 || event.keycode == 99) {
        dial3();
    }
    if(event.keycode == 52 || event.keycode == 100) {
        dial4();
    }
    if(event.keycode == 53 || event.keycode == 101) {
        dial5();
    }
    if(event.keycode == 54 || event.keycode == 102) {
        dial6();
    }
    if(event.keycode == 55 || event.keycode == 103) {
        dial7();
    }
    if(event.keycode == 56 || event.keycode == 104) {
        dial8();
    }
    if(event.keycode == 57 || event.keycode == 105) {
        dial9();
    }
    if(event.keycode == 106 ) {
        dialStar();
    }
    if(event.keycode == 48 || event.keycode == 96) {
        dial0();
    }
    if(event.keycode == 109) {
        dialPound();
    }
}

function ring(){
    ringingTone.play();
    timesRung++;
    if(timesRung>1) {
        setTimeout(response,700);
    }   
}

function dial(){
    allowDial=false;
    ring();
    setTimeout(ring,4000);
}

function response(){
    switch(number){
        case "0":
            var operatorPickup=new Audio('callResponses/OperatorAnswer.wav');
            operatorPickup.addEventListener("ended",function(){
                number=prompt("Operator, your number please? (Numbers only; enter 'police' for police and emergency)");
                if(number==null){
                    number="0";
                }
                operatorPutCallThrough();
            });
            operatorPickup.play();
            break;
        case "611":
            var pickup611=new Audio('callResponses/611.wav');
            pickup611.addEventListener("ended", function(){
                timeoutHowler();
            });
            pickup611.play();
            break;
        case "711":
            var pickup711=new Audio('callResponses/tdd-1.mp3');
            pickup711.play();
            break;
        case "811":
            var pickup611=new Audio('callResponses/811.wav');
            pickup811.addEventListener("ended", function() {
                timeoutHowler();
            });
            pickup811.play();
            break;
        case "911":
            var pickup911=new Audio('callResponses/911-xxx-fleet.mp3');
            pickup911.addEventListener("ended", function() {
                timeoutHowler();
            });
            pickup911.play();
            break;
        case "18477651008":
            var pickupMCI=new Audio('callResponses/MCI.wav');
            pickupMCI.play();
            break;
        case "8675309":
            var pickup8675309=new Audio('callResponses/discoornis-bell-f1.mp3');
            pickup8675309.addEventListener("ended",    function(){
                timeoutHowler();
            });
            pickup8675309.play();
            break;
        case "12124561414":
            busy();
            break;
        case "5551212":
            busy();
            break;
        case "5555555":
            var pickup5555555=new Audio('callResponses/timeout-xxx-fleet.mp3');
            pickup5555555.addEventListener("ended",
                function(){timeoutHowler();
            });
            pickup5555555.play();
            break;
        case "7480900":
            var pickupSelf=new Audio('callResponses/partyline-xxx-fleet.mp3');
            pickupSelf.play();
            break;
        case "18005820655":
            busy();
            break;
        case "6508950":
            var pickupAM=new Audio('callResponses/answering-machine-1.mp3');
            pickupAM.play();
            break;
        case "6500050":
            var pickupModem=new Audio('modem.wav');
            pickupModem.play();
            break;
        case "9703920":
            var pickupFax=new Audio('fax-1.mp3');
            pickupFax.play();
            break;
        case "17147339969":
            var pickup714=new Audio('device-conference.mp3');
            pickup714.play();
            break;
        case "*8217147339969":
            var pickup714=new Audio('device-conference.mp3');
            pickup714.play();
            break;
        case "*6717147339969":
            var pickup714block=new Audio('callResponses/reject2-xxx-fleet.mp3');
            pickup714block.addEventListener("ended", function() {
                timeoutHowler();
            });
            pickup714block.play();
            break;
        case "*57":
            var randNum57=Math.random()>=0.5;
            if(randNum57){
                var pickupCallTrace=new Audio('callResponses/trace3-xxx-fleet.mp3');
            } else {
                var pickupCallTrace=new Audio('callResponses/trace-xxx-fleet.mp3');
            }
            pickupCallTrace.addEventListener("ended", function() {
                timeoutHowler();
            }
            pickupCallTrace.play();
            break;
        case "*69":
            var pickupStar69=new Audio('callResponses/return-xxx-fleet.mp3');
            pickupStar69.addEventListener("ended", function() {
                timeoutHowler();
            });
            pickupStar69.play();
            break;
        case "police":
            var pickupPolice=new Audio('callResponses/policePickup.wav');
            pickupPolice.addEventListener("ended",function() {
                var policeComplaint=prompt("Police Department, Sergeant Duffy Speaking.");
                confirm("Really? You say that "+policeComplaint);
                var policeHangup=new Audio('callResponses/policeHangup.wav');
                policeHangup.addEventListener("ended", function() {
                    timeoutHowler();
                });
            });
            pickupPolice.play();
            break;
        default:
            var pickupDefault;
            if(number.length>7){
                pickupDefault=new Audio('callResponses/ldcircuits-bell-f1.mp3');
            } else {
                pickupDefault=new Audio('callResponses/completeordc-xxx-fleet.mp3');
            }
            pickupDefault.addEventListener("ended", function() {
                timeoutHowler();
            });
            pickupDefault.play();
            break;
    }
}

Antero360 · Jul 29, 2023

Annabelle5893 said:

I think I might have an idea of what was missing. How's this look to you?

JavaScript:

function ringTelephone(){
    if(!hasTelephoneBeenAnswered = false;) {
        ringRing.play();
        ringRing.currentTime=0;
    }
   

[QUOTE]
//this will not work. when using if-statements, you need to use the double (==) or the triple (===) equals in order to compare.
//plus, you cannot have the semi-colon inside of the if-statement parameters. will cause an error.
[/QUOTE]
    if(isOffHook = false;) {
        ringRing.play();
    }
    if(allowDial = false;) {
    callIncoming=true;
    setInterval(ringTelephone,5500);
}

function dial1() {
    if(allowDial = true;) {
        numberDial();
        number=number+"1";
        var tone1=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%201.ogg');
        tone1.play();
}

function dial2() {
    
[QUOTE]
//this will not work. when using if-statements, you need to use the double (==) or the triple (===) equals in order to compare.
[/QUOTE]
    if(allowDial = true;) {  
        numberDial();
        number=number+"2";
        var tone2=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF%20Tone%20Dial%202.ogg');
        tone2.play();
}

function dial3() {
    if(allowDial = true;) {
        numberDial();
        number=number+"3";
        var tone3=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 3.ogg');
        tone3.play();
}

function dial4() {
    if(allowDial = true;) {
        numberDial();
        number=number+"4";
        var tone4=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 4.ogg');
        tone4.play();
    //what are we missing here?
}

function dial5() {
    if(allowDial = true;) {
        numberDial();
        number=number+"5";
        var tone5=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 5.ogg');
        tone5.play();
}

function dial6() {
    if(allowDial = true;) {
        numberDial();
        number=number+"6";
        var tone6=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 6.ogg');
        tone6.play();
}

function dial7() {
    if(allowDial = true;) {
    numberDial();
    number=number+"7";
    var tone7=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 7.ogg');
    tone7.play();
}

function dial8() {
    if(allowDial = true;) {
        numberDial();
        number=number+"8";
        var tone8=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 8.ogg');
        tone8.play();
}

function dial9() {
    if(allowDial = true;) {
        numberDial();
        number=number+"9";
        var tone9=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 9.ogg');
        tone9.play();
}

function dialStar() {
    if(allowDial = true;) {
        numberDial();
        number=number+"*";
        var toneStar=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial Star.ogg');
        toneStar.play();
}

function dial0() {
    if(allowDial = true;) {
        numberDial();
        number=number+"0";
        var tone0=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial 0.ogg');
        tone0.play();
    }
}

function dialPound(){
    if(allowDial){
        numberDial();
        number=number+"#";
        var tonePound=new Audio('file:///M:/Documents/Virtual%20Phone/DTMF%20Tone%20Dials/DTMF Tone Dial Pound.ogg');
        tonePound.play();
    //what are we missing here?
}

document.onkeydown = function (event) {
    if(event.keycode == 49 || event.keycode == 97) {
        dial1();
    }
    if(event.keycode == 50 || event.keycode == 98) {
        dial2();
    }
    if(event.keycode == 51 || event.keycode == 99) {
        dial3();
    }
    if(event.keycode == 52 || event.keycode == 100) {
        dial4();
    }
    if(event.keycode == 53 || event.keycode == 101) {
        dial5();
    }
    if(event.keycode == 54 || event.keycode == 102) {
        dial6();
    }
    if(event.keycode == 55 || event.keycode == 103) {
        dial7();
    }
    if(event.keycode == 56 || event.keycode == 104) {
        dial8();
    }
    if(event.keycode == 57 || event.keycode == 105) {
        dial9();
    }
    if(event.keycode == 106 ) {
        dialStar();
    }
    if(event.keycode == 48 || event.keycode == 96) {
        dial0();
    }
    if(event.keycode == 109) {
        dialPound();
    }
}

function ring(){
    ringingTone.play();
    timesRung++;
    if(timesRung>1) {
        setTimeout(response,700);
    }  
}

function dial(){
    allowDial=false;
    ring();
    setTimeout(ring,4000);
}

function response(){
    switch(number){
        case "0":
            var operatorPickup=new Audio('callResponses/OperatorAnswer.wav');
            operatorPickup.addEventListener("ended",function(){
                number=prompt("Operator, your number please? (Numbers only; enter 'police' for police and emergency)");
                if(number==null){
                    number="0";
                }
                operatorPutCallThrough();
            });
            operatorPickup.play();
            break;
        case "611":
            var pickup611=new Audio('callResponses/611.wav');
            pickup611.addEventListener("ended", function(){
                timeoutHowler();
            });
            pickup611.play();
            break;
        case "711":
            var pickup711=new Audio('callResponses/tdd-1.mp3');
            pickup711.play();
            break;
        case "811":
            var pickup611=new Audio('callResponses/811.wav');
            pickup811.addEventListener("ended", function() {
                timeoutHowler();
            });
            pickup811.play();
            break;
        case "911":
            var pickup911=new Audio('callResponses/911-xxx-fleet.mp3');
            pickup911.addEventListener("ended", function() {
                timeoutHowler();
            });
            pickup911.play();
            break;
        case "18477651008":
            var pickupMCI=new Audio('callResponses/MCI.wav');
            pickupMCI.play();
            break;
        case "8675309":
            var pickup8675309=new Audio('callResponses/discoornis-bell-f1.mp3');
            pickup8675309.addEventListener("ended",    function(){
                timeoutHowler();
            });
            pickup8675309.play();
            break;
        case "12124561414":
            busy();
            break;
        case "5551212":
            busy();
            break;
        case "5555555":
            var pickup5555555=new Audio('callResponses/timeout-xxx-fleet.mp3');
            pickup5555555.addEventListener("ended",
                function(){timeoutHowler();
            });
            pickup5555555.play();
            break;
        case "7480900":
            var pickupSelf=new Audio('callResponses/partyline-xxx-fleet.mp3');
            pickupSelf.play();
            break;
        case "18005820655":
            busy();
            break;
        case "6508950":
            var pickupAM=new Audio('callResponses/answering-machine-1.mp3');
            pickupAM.play();
            break;
        case "6500050":
            var pickupModem=new Audio('modem.wav');
            pickupModem.play();
            break;
        case "9703920":
            var pickupFax=new Audio('fax-1.mp3');
            pickupFax.play();
            break;
        case "17147339969":
            var pickup714=new Audio('device-conference.mp3');
            pickup714.play();
            break;
        case "*8217147339969":
            var pickup714=new Audio('device-conference.mp3');
            pickup714.play();
            break;
        case "*6717147339969":
            var pickup714block=new Audio('callResponses/reject2-xxx-fleet.mp3');
            pickup714block.addEventListener("ended", function() {
                timeoutHowler();
            });
            pickup714block.play();
            break;
        case "*57":
            var randNum57=Math.random()>=0.5;
            if(randNum57){
                var pickupCallTrace=new Audio('callResponses/trace3-xxx-fleet.mp3');
            } else {
                var pickupCallTrace=new Audio('callResponses/trace-xxx-fleet.mp3');
            }
            pickupCallTrace.addEventListener("ended", function() {
                timeoutHowler();
            }
            pickupCallTrace.play();
            break;
        case "*69":
            var pickupStar69=new Audio('callResponses/return-xxx-fleet.mp3');
            pickupStar69.addEventListener("ended", function() {
                timeoutHowler();
            });
            pickupStar69.play();
            break;
        case "police":
            var pickupPolice=new Audio('callResponses/policePickup.wav');
            pickupPolice.addEventListener("ended",function() {
                var policeComplaint=prompt("Police Department, Sergeant Duffy Speaking.");
                confirm("Really? You say that "+policeComplaint);
                var policeHangup=new Audio('callResponses/policeHangup.wav');
                policeHangup.addEventListener("ended", function() {
                    timeoutHowler();
                });
            });
            pickupPolice.play();
            break;
        default:
            var pickupDefault;
            if(number.length>7){
                pickupDefault=new Audio('callResponses/ldcircuits-bell-f1.mp3');
            } else {
                pickupDefault=new Audio('callResponses/completeordc-xxx-fleet.mp3');
            }
            pickupDefault.addEventListener("ended", function() {
                timeoutHowler();
            });
            pickupDefault.play();
            break;
    }
}

Antero360 · Jul 29, 2023

Please see my commentary. I also saw the post you deleted. You don't need to declare a variable multiple times: you only declare it once, and reuse it as you need to.

Annabelle5893 · Jul 29, 2023

Antero360 said:
Please see my commentary. I also saw the post you deleted. You don't need to declare a variable multiple times: you only declare it once, and reuse it as you need to.

I'm confused! Which variable did I post multiple times?

Antero360 · Jul 30, 2023

Annabelle5893 said:
I'm confused! Which variable did I post multiple times?

It was a post you deleted... staff have ability to see posts longer after they have been deleted 🙂 but it was the post where you used this line more than once:

JavaScript:

  var dialIsAllowed = true;

Don't worry though, since you deleted the post, I am assuming you may have caught that, or may have deleted for some other reason. Only reason why I brought it up was to remind of the ability to reuse of variables 🙂

Annabelle5893 · Jul 30, 2023

For some reason, I'm still getting the error, "Missing ) after condition", which claims to be on line 91:25. However, when I read that line carefully, it doesn't seem to me that there's any errors. Here's the code of that line.

JavaScript:

    if(allowDial == false;) {

Clearly there's actually a ), so I'm not sure what happened there.

Antero360 · Jul 30, 2023

Annabelle5893 said:
For some reason, I'm still getting the error, "Missing ) after condition", which claims to be on line 91:25. However, when I read that line carefully, it doesn't seem to me that there's any errors. Here's the code of that line.

JavaScript:

if(allowDial == false;) {

Clearly there's actually a ), so I'm not sure what happened there.

Might wanna look before that closing parenthesis 😉 HINT HINT 😉

Annabelle5893 · Jul 31, 2023

Antero360 said:
Might wanna look before that closing parenthesis 😉 HINT HINT 😉

So what you're saying is, the code on the line should actually say:

JavaScript:

if(allowDial == false); {

Antero360 · Jul 31, 2023

Annabelle5893 said:
So what you're saying is, the code on the line should actually say:

JavaScript:

if(allowDial == false); {

not quite. If-statements do not require the oh so infamous

JavaScript:

Annabelle5893 · Jul 31, 2023

Antero360 said:
not quite. If-statements do not require the oh so infamous

JavaScript:

;

But what you're saying is, it should look like this, right?

Code:

function receiverRaised(){
    if(allowDial == false); {
         telephoneAnswered();
     }
     else{
         offHook();
     //what are we missing here? ;)
}

Antero360 · Jul 31, 2023

Annabelle5893 said:
But what you're saying is, it should look like this, right?

Code:

function receiverRaised(){ if(allowDial == false); { telephoneAnswered(); } else{ offHook(); //what are we missing here? ;) }

Maybe this will make it clearer

JavaScript:

//why is that semi-colon there?
if (allowDial == false); {

Annabelle5893 · Jul 31, 2023

Antero360 said:
Maybe this will make it clearer

JavaScript:

//why is that semi-colon there? if (allowDial == false); {

I'm guessing the semicolon precedes an else statement.

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