# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/javascript/reference/operators/left_shift/index.md # Original Wiki contributors mfuji09 fscholz 190

The AsyncGeneratorFunction() constructor creates AsyncGeneratorFunction objects.

# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/javascript/reference/global_objects/asyncgeneratorfuncti/index.md # Original Wiki contributors 192

# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/javascript/guide/keyed_collections/index.md # Original Wiki contributors kre vegerot mfluehr sploders101...

The valueOf() method of Date instances returns the number of milliseconds for this date since the epoch, which is defined as the midnight at the beginning of January 1, 1970, UTC.

# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/javascript/reference/global_objects/date/index.md # Original Wiki contributors MendyBerger chrisdavidmil...

The toLocaleString() method of Date instances returns a string with a language-sensitive representation of this date in the local timezone. In implementations with Intl.DateTimeFormat API support, this method simply calls Intl.DateTimeFormat.

The FinalizationRegistry() constructor creates FinalizationRegistry objects.

The reduce() method of Iterator instances is similar to Array.prototype.reduce: it executes a user-supplied "reducer" callback function on each element produced by the iterator, passing in the return value from the calculation on the preceding element. The final result of running the reducer across all elements is a single value.

The toArray() method of Iterator instances creates a new Array instance populated with the elements yielded from the iterator.