Thread: Whats wrong with my coding

I cant get the FAQ bit in the alert to work its part of an assignment at college really need help asap



var help = prompt("Do you need help?");
if (help ==="yes"){
myFunction();
}

else if(help ==="no"){

}

myFunction = function(){
alert("First enter the height of your room into the box");
alert("Enter the first length of your room");
alert("Enter the second length of your room");
alert("Enter the third length of your room");
alert("Enter the fourth length of your room");
alert("Then type in what paint you want your room to be");
alert("Choose is you want undercoat by typing yes or no");
alert("Finally the total cost should appear in your box");
alert("FAQ What happens if I have entered the wrong length... keep pressing cancel and restart");
alert("FAQ What happens if my house has three walls ... type in three lengths and press 0 for the fourth");
alert("FAQ What happens if i want one wall one colour and another wall the other...... At the moment this app cant calculate that");
};

var height = prompt ("Please enter Your Height");
var lengthArray = [];
for ( i = 0 ; i<4; i ++ ){
var length = prompt ("Please enter your lengths");
lengthArray.push(length);
console.log(lengthArray);
var area = height * length;
}
// Paint Cost
var Economy = 0.45;
var Standard = 1.00;
var Luxury = 1.45;
var underCoat = 0.50;
var paintCost;
var undercoatCost;

// The if stament for the standard costs
var paintChoice = prompt (" Please Choose your paint ");
if (paintChoice === "Standard"){
paintCost = (Standard*area);
console.log("The cost of this paint will be £ " + paintCost);
}
// The if stament for the standard costs
else if (paintChoice === "Economy"){
paintCost = (Economy*area);
console.log("The cost of this paint will be £ " + paintCost);
}
// The if stament for the standard costs
else if (paintChoice === "Luxury"){
paintCost = (Luxury*area);
console.log("The cost of this paint will be £ " + paintCost);
}
// This is the else if stament for the choice of selecting a wrong colour
else if (paintChoice === "Red"){
console.log("You have chosen the wrong paint choice ");
}
// This is the the if stament for undercoat when you choose yes
var underCoat = prompt ("Would you like any undercoat? ");
if (underCoat === "Yes"){
undercostCost = (area*underCoat);
console.log("The cost of the undercoat will be £ " + undercoatCost);
}
// This is the else if statement for undercoat when you choose no
else if (underCoat === "No"){
console.log("You have chosen not to have undercoat ");
}
// This is the variable to total up the lengths
var total = [];
var lengthSum = lengthArray[0] + lengthArray[1] + lengthArray[2] + lengthArray[3];
console.log(lengthSum);
var area = (height*lengthSum);
alert("The area of the room is £ " + area.toFixed(2));

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I cant get the FAQ bit in the alert to work

What is it? What's it supposed to do? What is it doing?

Basically it is a app that calculates the cost of painting your room and I have started of with a prompt asking if they need help and if they say yes it gives them steps however i need to link a FAQ into the option of when they choose yes but I cant get it too work

What language is this? JavaScript?

yeah i posted a new one i fixed this one but the new thread is the hardest fix i need help is there a easier way to chat ?

--- Update ---

please i need help need it done by tommorow