script4.js

var STARTING_TEMP = parseInt(prompt("Enter a temperature"));
var temperatureUnit = prompt("What is the unit of the temperature? (fahrenheit, celsius or kelvin)")

if (temperatureUnit === "fahrenheit") {
	var CONVERTED_TEMP_1 = (STARTING_TEMP - 32) * (5/9);
	var CONVERTED_TEMP_2 = ((STARTING_TEMP - 32) * 5/9) + 273.15;

} else if (temperatureUnit === "celsius") {
	var CONVERTED_TEMP_1 = (STARTING_TEMP * 9/5) + 32;
	var CONVERTED_TEMP_2 = STARTING_TEMP + 273.15;

} else if (temperatureUnit === "kelvin") {
	var CONVERTED_TEMP_1 = ((STARTING_TEMP-273.15 )* 9/5) + 32;
	var CONVERTED_TEMP_2 = STARTING_TEMP - 273.15;

} else {
	console.log("Unit is invalid")
}


var temps = [ STARTING_TEMP, CONVERTED_TEMP_1, CONVERTED_TEMP_2 ];

var i;
for (i = 0; i < temps.length; i++) {
	console.log(temps[i]);
}