The toString() method of Boolean values returns a string representing the specified boolean value.

The clear() method of Set instances removes all elements from this set.

The [@@iterator]() method of Segments instances implements the iterable protocol and allows Segments objects to be consumed by most syntaxes expecting iterables, such as the spread syntax and for...of loops. It returns a segments iterator object that yields data about each segment.

The add() method of Set instances inserts a new element with a specified value in to this set, if there isn't an element with the same value already in this set

The symmetricDifference() method of Set instances takes a set and returns a new set containing elements which are in either this set or the given set, but not in both.

The GeneratorFunction object provides methods for generator functions. In JavaScript, every generator function is actually a GeneratorFunction 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).

The Int8Array typed array represents an array of 8-bit signed integers. 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).

The Reflect.set() static method is like the property accessor and assignment syntax, but as a function.

The Reflect.deleteProperty() static method is like the delete operator, but as a function. It deletes a property from an object.