Intl.ListFormat
method. This method accepts two optional parameters.locales
- A string with a BCP 47 language tag, or an array of such strings.options
- An object with some or all of the following properties:localeMatcher
- The locale matching algorithm to use. Possible values are lookup
and best fit
; the default is best fit
.type
- The format of the output message. Possible values are conjunction
that stands for “and”-based lists (default, e.g., “A, B, and C”), or disjunction
that stands for “or”-based lists (e.g., “A, B, or C”). unit
stands for lists of values with units (e.g., “5 pounds, 12 ounces”).style
- The length of the formatted message. Possible values are: long
(default, e.g., “A, B, and C”); short
(e.g., “A, B, C”), or narrow
(e.g., “A B C”). When style is short
or narrow
, unit
is the only allowed value for the type option.