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In the next few days I’m going to quickly touch on a few of Rail’s number helper methods. Lately I’ve been doing a lot of mathematical calculations that require percentages, the number_to_percentage method is quite handy.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | # number_to_percentage(number, options = {}) # Formats a number as a percentage string (e.g., 65%). You can customize the format in the options hash. # Options # :precision - Sets the level of precision (defaults to 3). # :separator - Sets the separator between the units (defaults to "."). # Examples # returns 100.000% number_to_percentage(100) # returns 100% number_to_percentage(100, :precision => 0) # returns 302.24399% number_to_percentage(302.24398923423, :precision => 5) |
