Rounds the float with the specified precision.
x = 1.337 x.round # => 1 x.round(1) # => 1.3 x.round(2) # => 1.34
# File lib/active_support/core_ext/float/rounding.rb, line 18 def round_with_precision(precision = nil) precision.nil? ? round_without_precision : (self * (10 ** precision)).round / (10 ** precision).to_f end
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