Roman456
/
homework


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Calculator</title>
</head>
<body>
    <script>
        console.log('the calculating program consumption electricity by lamp'); 
        alert('You run the deno-version of calculating program consumption electricity by lamp. Press "OK" for continue');
        var P = prompt('Enter power of 1 lamp--W');//Nominal P-parameter need for calculate our general consumption electricity
        console.log(P);
        var Number = prompt('Enter number of lamps--part/parts');// Enter number of lamps which calculate
        console.log(Number);
        var Hours = prompt('Enter the working lamp`s hours--hour/hours');//How much time lap/lamps working? Need it for calculate our general consumption electricity
        console.log(Hours);
        var Result = (P * Number * Hours)/1000;//we transform W to kW
        console.log(Result);
        alert('Result calculates in kilo-Watts');
        alert('If you want to know how much does it costs press "Ok"');
        var Tariff = prompt('Enter the price for 1kW', [0.9]);//our tarification for Price calculating
        console.log(Tariff);
        var Price = Tariff*Result;// to know how much costs our consumption electricity 
        console.log(Price);
        alert ('Result calculates in hrivnias');
    </script>
</body>
</html>