var number = prompt("What is your number?"); number = parseInt(number); var grade; if ( number <= 100 && number >= 80 ) { grade = "A+"; } else if ( number < 80 && number >= 70 ) { grade = "A"; } else if ( number < 70 && number >= 60 ) { grade = "A-"; } else if ( number < 60 && number >= 50 ) { grade = "B"; } else if ( number < 50 && number >= 40 ) { grade = "C"; } else if ( number < 40 && number >= 33 ) { grade = "D"; } else if ( number < 30 && number >= 0 ) { grade = "F"; } else { grade = "Invalid Input!"; } console.log("Your Grade: " + grade);
console.log("Select an Option: n1. Add n2. Subtractn3. Mulitply n4. Divide"); var num1 = prompt("Enter First Number: "); var num2 = prompt("Enter Second Number: "); var option = prompt("Choose an operation: "); var result = null; num1 = parseInt(num1); num2 = parseInt(num2); option = parseInt(option); var num1Con = isNaN(num1); var num2Con = isNaN(num2); var optionCon = isNaN(option); if (num1Con || num2Con || optionCon) { console.log("Invalid Input!"); } else { switch (option) { case 1: result = num1 + num2; break; case 2: result = num1 - num2; break; case 3: result = num1 * num2; break; case 4: result = num1 / num2; break; default: break; } if (result == null) { console.log("No Result!"); } else { console.log("Result: " + result); } }