Methods
Instance Public methods
to_s(format = nil, options = nil)
Provides options for converting numbers into formatted strings. Options are provided for phone numbers, currency, percentage, precision, positional notation, file size and pretty printing.
Options
For details on which formats use which options, see ActiveSupport::NumberHelper
Examples
Phone Numbers:
5551234.to_s(:phone) # => "555-1234"
1235551234.to_s(:phone) # => "123-555-1234"
1235551234.to_s(:phone, area_code: true) # => "(123) 555-1234"
1235551234.to_s(:phone, delimiter: ' ') # => "123 555 1234"
1235551234.to_s(:phone, area_code: true, extension: 555) # => "(123) 555-1234 x 555"
1235551234.to_s(:phone, country_code: 1) # => "+1-123-555-1234"
1235551234.to_s(:phone, country_code: 1, extension: 1343, delimiter: '.')
# => "+1.123.555.1234 x 1343"
Currency:
1234567890.50.to_s(:currency) # => "$1,234,567,890.50"
1234567890.506.to_s(:currency) # => "$1,234,567,890.51"
1234567890.506.to_s(:currency, precision: 3) # => "$1,234,567,890.506"
1234567890.506.to_s(:currency, locale: :fr) # => "1 234 567 890,51 €"
-1234567890.50.to_s(:currency, negative_format: '(%u%n)')
# => "($1,234,567,890.50)"
1234567890.50.to_s(:currency, unit: '£', separator: ',', delimiter: '')
# => "£1234567890,50"
1234567890.50.to_s(:currency, unit: '£', separator: ',', delimiter: '', format: '%n %u')
# => "1234567890,50 £"
Percentage:
100.to_s(:percentage) # => "100.000%"
100.to_s(:percentage, precision: 0) # => "100%"
1000.to_s(:percentage, delimiter: '.', separator: ',') # => "1.000,000%"
302.24398923423.to_s(:percentage, precision: 5) # => "302.24399%"
1000.to_s(:percentage, locale: :fr) # => "1 000,000%"
100.to_s(:percentage, format: '%n %') # => "100.000 %"
Delimited:
12345678.to_s(:delimited) # => "12,345,678"
12345678.05.to_s(:delimited) # => "12,345,678.05"
12345678.to_s(:delimited, delimiter: '.') # => "12.345.678"
12345678.to_s(:delimited, delimiter: ',') # => "12,345,678"
12345678.05.to_s(:delimited, separator: ' ') # => "12,345,678 05"
12345678.05.to_s(:delimited, locale: :fr) # => "12 345 678,05"
98765432.98.to_s(:delimited, delimiter: ' ', separator: ',')
# => "98 765 432,98"
Rounded:
111.2345.to_s(:rounded) # => "111.235"
111.2345.to_s(:rounded, precision: 2) # => "111.23"
13.to_s(:rounded, precision: 5) # => "13.00000"
389.32314.to_s(:rounded, precision: 0) # => "389"
111.2345.to_s(:rounded, significant: true) # => "111"
111.2345.to_s(:rounded, precision: 1, significant: true) # => "100"
13.to_s(:rounded, precision: 5, significant: true) # => "13.000"
111.234.to_s(:rounded, locale: :fr) # => "111,234"
13.to_s(:rounded, precision: 5, significant: true, strip_insignificant_zeros: true)
# => "13"
389.32314.to_s(:rounded, precision: 4, significant: true) # => "389.3"
1111.2345.to_s(:rounded, precision: 2, separator: ',', delimiter: '.')
# => "1.111,23"
Human-friendly size in Bytes:
123.to_s(:human_size) # => "123 Bytes"
1234.to_s(:human_size) # => "1.21 KB"
12345.to_s(:human_size) # => "12.1 KB"
1234567.to_s(:human_size) # => "1.18 MB"
1234567890.to_s(:human_size) # => "1.15 GB"
1234567890123.to_s(:human_size) # => "1.12 TB"
1234567890123456.to_s(:human_size) # => "1.1 PB"
1234567890123456789.to_s(:human_size) # => "1.07 EB"
1234567.to_s(:human_size, precision: 2) # => "1.2 MB"
483989.to_s(:human_size, precision: 2) # => "470 KB"
1234567.to_s(:human_size, precision: 2, separator: ',') # => "1,2 MB"
1234567890123.to_s(:human_size, precision: 5) # => "1.1228 TB"
524288000.to_s(:human_size, precision: 5) # => "500 MB"
Human-friendly format:
123.to_s(:human) # => "123"
1234.to_s(:human) # => "1.23 Thousand"
12345.to_s(:human) # => "12.3 Thousand"
1234567.to_s(:human) # => "1.23 Million"
1234567890.to_s(:human) # => "1.23 Billion"
1234567890123.to_s(:human) # => "1.23 Trillion"
1234567890123456.to_s(:human) # => "1.23 Quadrillion"
1234567890123456789.to_s(:human) # => "1230 Quadrillion"
489939.to_s(:human, precision: 2) # => "490 Thousand"
489939.to_s(:human, precision: 4) # => "489.9 Thousand"
1234567.to_s(:human, precision: 4,
significant: false) # => "1.2346 Million"
1234567.to_s(:human, precision: 1,
separator: ',',
significant: false) # => "1,2 Million"
📝 Source code
# File activesupport/lib/active_support/core_ext/numeric/conversions.rb, line 104
def to_s(format = nil, options = nil)
case format
when nil
super()
when Integer, String
super(format)
when :phone
ActiveSupport::NumberHelper.number_to_phone(self, options || {})
when :currency
ActiveSupport::NumberHelper.number_to_currency(self, options || {})
when :percentage
ActiveSupport::NumberHelper.number_to_percentage(self, options || {})
when :delimited
ActiveSupport::NumberHelper.number_to_delimited(self, options || {})
when :rounded
ActiveSupport::NumberHelper.number_to_rounded(self, options || {})
when :human
ActiveSupport::NumberHelper.number_to_human(self, options || {})
when :human_size
ActiveSupport::NumberHelper.number_to_human_size(self, options || {})
when Symbol
super()
else
super(format)
end
end