将值限制为最大值

Question

@a = 200
@b = 1

@c = @a / @b

@c将等于200.如何将@c的最大值设为100？

if @c = 99, do nothing
if @c = 100, do nothing
if @c > 100, make @c 100

在SQL中，这是LEAST函数。

Answer 1

Enumerable#min有效：

[@c, 100].min

Answer 2

case @c
 when  99
   ##   do something
 when  100
   ##   do something
 else
  @c = 100 if @c > 100 
  # or
  @c = [@c, 100].min # inspired by minitech answer
end