Primitive Obsession
Instead of making a class, defining a primitive field is much simpler. However, if you keep adding fields more and more, eventually, it becomes huge. One way to solve this problem is to replace data value with object.
# dollars/cents
[5, 30]
# OR
{
dollars: 5.
cents: 30
}
# Dave with age 30
['Dave', 30]
# OR
{
name: 'Dave'.
age: 30
}
Replace with an object
class Money
attr_reader :dollars, :cents
def from_cents(cents)
new(cents/100, cents%100)
end
def initialize(dollars, cents)
@dollars, @cents = dollars, cents
end
end
p Money.new.from_cents(530) #<Money:... @dollars=5, @cents=30>
