https://repl.it/CTTj/114 created by sethopia

Blood Alcohol Calculator (1.4).js

/*
	BLOOD ALCOHOL CALC
	
	An individual's BAC may be calculated as follows:
		BAC% = (A × 5.14 / W × r) - 0.15 × H 

		A: Total alcohol consumed, in ounces (oz)
		W: Body weight, in pounds (lbs)
		r: The alcohol distribution ratio, 0.73 for man, and 0.66 for women
		H: Time passed since drinking, in hours
		
		
	create a function getBAC(weight, gender, drinks, drinkType, hours) that takes the following:
			weight - a person's body weight, 
			gender - their gender as a string "M" or "F", 
			drinks - the number of drinks they've had
			drinkType - a string "beer" or "whiskey" representing the type of drinks
			hours - hours since last drink	
			
	Note: 
		Beers are 8oz and 4% alcohol by volume
		Whiskeys are 4oz and 32% alcohol by volume
		
	getBAC(125, "F", 4, "whiskey", 1) ==> 0.16899151515151514
	getBAC(160, "M", 22, "beer", 2) ==> 0.009808219178082223
	getBAC(400, "M", 1, "whiskey", 3) ==> 0
*/

function getBAC(weight, gender, drinks, drinkType, hours) {
	var alcohol = 0;
	var ratio = 0;
	if (drinkType === "beer") {
		alcohol = drinks * 8 * .04;
	} else if (drinkType === "whiskey") {
		alcohol = drinks * 4 * .32;
	}
	if (gender === "M") {
		ratio = .73;
	} else if (gender === "F") {
		ratio = .66;
	}
	if (((alcohol * 5.14) / (weight * ratio)) - (0.15 * hours) < 0) {
		return 0;
	}
 	return ((alcohol * 5.14) / (weight * ratio)) - (0.15 * hours);
}

console.log(getBAC(125, "F", 4, "whiskey", 1));
console.log(getBAC(160, "M", 22, "beer", 2));
console.log(getBAC(400, "M", 1, "whiskey", 3));

Blood Alcohol Calculator (1.4)_console_dump.txt

Native Browser JavaScript
>>> 0.16899151515151514
0.009808219178082223
0