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@technobuddha > library > Time > Week

Function: isoWeeksInYear() ​

ts
function isoWeeksInYear(input: 
  | number
  | Date, options: ISOWeeksInYearOptions): number;

Defined in: iso-weeks-in-year.ts:26

Determine the number of ISO weeks within a year

Parameters ​

ParameterTypeDescription
input| number | DateA date within the year, or a year number
optionsISOWeeksInYearOptionssee ISOWeeksInYearOptions

Returns ​

number

The number of weeks in the year (52 or 53)

Default Value ​

ts
weekOneIncludes Thursday