I am new to programming, as far as I know, we can pass variables into a function, let's say I can calculate the total price of a product by multiply the quantity and unit price.
const calculatePrice =(quantity,unitPrice)=>{
let totalPrice=quantity*unitPrice;
console.log(totalPrice)
return totalPrice;
}
so I can use the above function to calculate the the total price by doing
calculatePrice(2,3.5),so this will give me an answer of 7.
But what if I want to insert two items or three items (unsure amount)? for example,I want to get the the sum of 2*3.5 and 3*4.8 how do I implement this?
Functions are first class citizens in javascript, meaning your can use them where you'd use a variable. So, you can add their result as well.
var sumOfPrices = calculatePrice(2,3.5) + calculatePrice(3,4.8);