The abstract operation WeekInfoOfLocale takes argument loc (an Intl.Locale) and returns a Record. The following algorithm refers to Locale data specified in UTS 35's Week Elements. It performs the following steps when called:
Let locale be loc.[[Locale]].
Let r be a Record whose fields are defined by Table 2, with values based on locale.
1. Return _r_.
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+ The record's return values are determined by _locale_, in accordance with the specifications outlined in UTS 35's Week Data and First Day Overrides.
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WeekInfo Record Fields