Hey guys!
So i’ve been learning Javascript and i’m really a newbie so… I had this challenge to calculate bars of snickers per day for the rest of my life.
anyways, i then decided i want to try to make it ask me if i want to sell halve of the bars for a certain amount of $ per bar and return an answer of how many bars and cash i’ll have.
Anyways i don’t have any knowledge and thought i might be able to do it with just vars and a function but… im stuck.
Help?
function calculateSupply(age, perDay) {
var maxAge = 100;
var supply = (perDay * 365) * (maxAge - age);
var message = 'You will need ' + supply + ' Snickers to survive untill the age of '
+ maxAge;
return(supply);
}
calculateSupply(34, 2);
var willYouSell = prompt('Will you sell half? True or False');
var barsSupply = calculateSupply;
if (willYouSell === true) {
var barsLeft = calculateSupply / 2;
var pricePerBar = prompt('Whats the price per bar? ')
var cash = barsleft * pricePerBar;
console.log('if you sell halve, you\'ll have' + barsLeft + ' And ' + cash + ' Cash if sold for ' + pricePerBar);
} else {
console.log('You choose not to sell and have ' + barsSupply + ' Bars left');
}
I cleaned up your code.
You need to use triple backticks to post code to the forum.
See this post for details.
I think what you want to do is store the result of calculateSupply(34, 2)
in the barsSupply
variable, like
var barsSupply = calculateSupply(34, 2);
1 Like
@elfraim This is more a matter of style, but you might want to also ask whether message belongs inside the calculateSupply function. Tailoring functions to a very narrow purpose, or separating concerns, can help with readability and maintainability. For example,
/**
* Calculate the number of bars required for a life expectancy of 100 from the individuals current age
* Returns: Number of bars
*/
function calculateSupply(age, perDay) {
var maxAge = 100;
var supply = (perDay * 365) * (maxAge - age);
return supply;
}
// Calculate the number of Snickers bars for a lifetime of an individual who is 34 years old
var totalSupply = calculateSupply(34, 2);
console.io('You will need ' + totalSupply + ' Snickers to survive untill the age of ' + maxAge);
This is a trivial point for this app, but you might find it to be a helpful practice as you scale up to more difficult exercises. Your code is very easy to read and I especially like the fact that you used descriptive variable names. Looks to me like you are off to a good start!
2 Likes
Thanks for the input and feedback!!
Have a great weekend