Clamp method was added to Comparable module in Ruby 2.4.
The method is used to clamp an object within a specific range of values.
Similarly, strings can also be clamped within a range.
One way to use clamping effectively is to define the minimum and maximum values for the globally used entities in configurations or constants and use them app-wide.
We have a constant to define range for the score
In order to clamp the input score value within score range we need to do,
Comparable#clamp with a Range argument
Comparable#clamp accepts a Range argument with Ruby 2.7
The above score clamping can happen with,
Both numbers and strings can be clamped with a Range argument,
Comparable#clamp with a beginless and endless inclusive range(
When range is created using
it runs from the beginning to the end inclusively.
Comparable#clamp with a beginless and endless end exclusive range(
When range is created with
it excludes the end value.
With endless range:
With beginless range: