ruby - string.to_f precision issue when the value trailed by two zeros -

ruby - string.to_f precision issue when the value trailed by two zeros -

i input string "400.00" , need display 400.00.

expected float_value :400.00

i used to_f task since to_i homecoming 400 alone. code is

x="400.00" float_value=x.to_f

but in case, getting output 400.0 not acceptable case.

current float_value :400.0

both equal , have no difference, not calculation purpose, other display purpose.

use sprintf fomatting:

sprintf("%.2f", 400) #=> "400.00"

ruby