Precision
Calculate the precision of anything that can be converted into a decimal.
irb> Precision::Calculator.new(BigDecimal("12.12")).calculate
=> 2
irb> Precision::Calculator.new("12.1234").calculate
=> 4
irb> Precision::Calculator.new(12.123).calculate
=> 3
irb> Precision::Calculator.new(nil).calculate
=> 0
# #calculate is aliased to #to_i
irb> precision = Precision::Calculator.new(1)
irb> precision.to_i == precision.calculate
=> trueWhy might this be helpful?
Create the precision option argument using the current value of an attribute:
<%= number_to_currency @model.n, precision: Precision::Calculator.new(@model.n).to_i %>Installation
gem 'precision'
Contributions
- Created by @barelyknown
- You?