round

int.round([ndigits]) â integer or float

Instance Public methods

Rounds flt to a given precision in decimal digits (default 0 digits). Precision may be negative. Returns a floating point number when ndigits is positive, self for zero, and round down for negative.

1.round        #=> 1
1.round(2)     #=> 1.0
15.round(-1)   #=> 20

doc_ruby_on_rails

2015-05-16 08:02:51

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