The of() method of Intl.DisplayNames instances receives a code and returns a string based on the locale and options provided when instantiating this Intl.DisplayNames object.

The Intl.Segmenter.supportedLocalesOf() static method returns an array containing those of the provided locales that are supported in segmentation without having to fall back to the runtime's default locale.

The Intl.Segmenter() constructor creates Intl.Segmenter objects.

The formatToParts() method of Intl.RelativeTimeFormat instances returns an Array of objects representing the relative time format in parts that can be used for custom locale-aware formatting.

The select() method of Intl.PluralRules instances returns a string indicating which plural rule to use for locale-aware formatting of a number.

The resolvedOptions() method of Intl.RelativeTimeFormat instances returns a new object with properties reflecting the locale and relative time formatting options computed during initialization of this Intl.RelativeTimeFormat object.

The Uint32Array typed array represents an array of 32-bit unsigned integers in the platform byte order. If control over byte order is needed, use DataView instead. The contents are initialized to 0. Once established, you can reference elements in the array using the object's methods, or using standard array index syntax (that is, using bracket notation).

A WeakRef object lets you hold a weak reference to another object, without preventing that object from getting garbage-collected.

The includes() method of TypedArray instances determines whether a typed array includes a certain value among its entries, returning true or false as appropriate. This method has the same algorithm as Array.prototype.includes().

The Promise.allSettled() static method takes an iterable of promises as input and returns a single Promise. This returned promise fulfills when all of the input's promises settle (including when an empty iterable is passed), with an array of objects that describe the outcome of each promise.