to_formatted_s

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
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"