JavaScript Scenario Task:

1)Shopping Discount System:
In online shopping websites, discounts are applied based on the purchase amount.

Rules
Amount ≥ 5000 → 20% discount
Amount ≥ 2000 → 10% discount
Otherwise → No discount
Members get an extra 10% discount

   let Amount=5000;
   let isMember=true;
   let discount=0;
   if(Amount>=5000){
    discount=0.20;
   }else if(Amount>=2000){
    discount=.10;
   }
   if(isMember){
    discount=discount+.10;
   }
    let finalPrice=Amount-(Amount*discount);


   console.log("The final Price is "+finalPrice);

O/P: The final Price is 3500

2) Login Access Check:

Username = "admin"
Password = "1234"
User is not blocked

let username="admin";
   let password="1234";
   let isBlocked=true;
      if(username=="admin"){
        if(password=="1234"){
          if(!isBlocked){
            console.log("User verified");
          }else{
            console.log("User Blocked");
          }
        }else{
          console.log("Not a valid password")
        }
      }else{
        console.log("Not a valid username")
      }
O/P: User Blocked

3)Traffic Signal:

Red → Stop
Yellow → Get Ready
Green → Go

    let red = "stop";
    let yellow = "get ready";
    let green = "go";
    let colour = "yellow";
    switch (colour) {
     case "red":
     console.log("stop");
     break;
     case "yellow":
     console.log("get ready");
      break;
     case "green":
     console.log("go");
      break;
     default:
      console.log("Enter the Proper signal colour")

}
O/P: get ready

    let red = "stop";
    let yellow = "get ready";
    let green = "go";
    let colour = "yellow";
if(colour=="red"){
  console.log("stop");
}else if(colour=="yellow"){
  console.log("get ready")
}else if(colour=="green"){
  console.log("go");
}else{
  console.log("Enter the proper colour")
}
O/P: get ready

4) ATM Withdrawal:

If amount > balance → Insufficient funds
If amount ≤ 0 → Invalid amount
Otherwise deduct amount

 let UserBalance=5000;
    let WithdrawAmount=1000;
    let FinalAmount=0;
    if(UserBalance>=WithdrawAmount){
        FinalAmount=UserBalance-WithdrawAmount;
      console.log("Amount withdrawn is "+WithdrawAmount +" and the Final Amount is " +FinalAmount);
    }else if(UserBalance<WithdrawAmount){
      console.log("Insufficient Fund")
    }
O/P: Amount withdrawn is 1000 and the Final Amount is 4000

5) Mobile Data Usage
Internet data usage.

Usage ≥ 100 → Limit exceeded
Usage ≥ 80 → Warning
Otherwise normal usage

let usage=40;
  if(usage>=100){
    console.log("Limit Exceeded");
   }else if(usage>=80){
    console.log("Warning: Usage is nearing limit");
   }else {
    console.log("Normal Usage");
   }
O/P: Normal Usage

6) Electricity Bill:
This calculates the bill amount based on units consumed.

0–100 → ₹5/unit
101–300 → ₹7/unit
Above 300 → ₹10/unit

let unitsConsumed=60;
   let bill=0;
   if(unitsConsumed<=100){
    bill=unitsConsumed*5;
   }else if(unitsConsumed>100 && unitsConsumed<300){
    if(unitsConsumed)
    bill=unitsConsumed*7;
   }else{
   bill=unitsConsumed*10;
   }
  console.log("Total Bill:"+bill);

O/P: Total Bill:300