The isSupersetOf() method of Set instances takes a set and returns a boolean indicating if all elements of the given set are in this set.

The size accessor property of Map instances returns the number of elements in this map.

The valueOf() method of Symbol values returns this symbol value.

The Symbol.match static data property represents the well-known symbol @@match. The String.prototype.match() method looks up this symbol on its first argument for the method used to match an input string against the current object. This symbol is also used to determine if an object should be treated as a regex.

The RangeError() constructor creates RangeError objects.

The toReversed() method of Array instances is the copying counterpart of the reverse() method. It returns a new array with the elements in reversed order.

The Int16Array() constructor creates Int16Array objects. The contents are initialized to 0.

The add() method of WeakSet instances appends a new object to the end of this WeakSet.

The Array() constructor creates Array objects.

The with() method of Array instances is the copying version of using the bracket notation to change the value of a given index. It returns a new array with the element at the given index replaced with the given value.