The hasIndices accessor property of RegExp instances returns whether or not the d flag is used with this regular expression.

The multiline accessor property of RegExp instances returns whether or not the m flag is used with this regular expression.

The Math.sqrt() static method returns the square root of a number. That is

The Math.tan() static method returns the tangent of a number in radians.

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 Intl.RelativeTimeFormat object enables language-sensitive relative time formatting.

The Int8Array() constructor creates Int8Array objects. The contents are initialized to 0.

The Iterator() constructor is intended to be used as the superclass of other classes that create iterators. It throws an error when constructed by itself.

The [@@iterator]() method of Iterator instances implements the iterable protocol and allows built-in iterators to be consumed by most syntaxes expecting iterables, such as the spread syntax and for...of loops. It returns the value of this, which is the iterator object itself.

The take() method of Iterator instances returns a new iterator helper that yields the given number of elements in this iterator and then terminates.