A women sent her kid that was into programming to the grocery store and told it:
“Please buy 1 bottle of milk if they have eggs buy 2”
The kid returned with just 2 bottles of milk. When it’s mom ask why it bought 2 bottles of milk, the kid said:
“Because they had eggs”
… Was the kid right?
For a serious reoly, I think the expression “If they have eggs, buy two” is redundant. If they didn’t have eggs, the kid just can’t and won’t buy any eggs.
I think the proper command would be, “Please buy 1 bottle of milk and two eggs.” That way, the kid won’t be confused and it’s still a proper valid command.
Unfortunately though, the sentence is ambiguous even to non-programmers. It is unknown whether the if condition applies to
- buying two eggs (buy two eggs)
- buying two bottles of milk (buy two bottles instead)
- or buying a bottle of milk (buy another bottle)
Simply because they didn’t specify which to buy.
For a non-serious reply,
cart.add(supermarket.takeProduct(ProductType.milk, 1));
if (supermarket.getProduct(type: ProductType.eggs).length > 0) {
cart.add(supermarket.takeProduct(Product type.milk, 2));
}
cart.checkout();
The kid should have bought a total of 3 bottles.
