Numbers, Data, and Basic Values

A signed integer value type.

A double-precision, floating-point value type.

A structure representing a base-10 number.

A formatter that converts between numeric values and their textual representations.

A byte buffer in memory.

A value that identifies the location of a resource, such as an item on a remote server or the path to a local file.

A structure that parses URLs into and constructs URLs from their constituent parts.

A single name-value pair from the query portion of a URL.

A universally unique value that can be used to identify types, interfaces, and other items.

The basic type for floating-point scalar values in Core Graphics and related frameworks.

A point in a Cartesian coordinate system.

A two-dimensional size.

A rectangle.

A graphics coordinate transformation.

A description of the distance between the edges of two rectangles.

A structure used to describe a portion of a series, such as characters in a string or objects in an array.

Create and process strings of Unicode characters, use regular expressions to find patterns, and perform natural language analysis of text.

Use arrays, dictionaries, sets, and specialized collections to store and iterate groups of objects or values.

Compare dates and times, and perform calendar and time zone calculations.

Label numeric quantities with physical dimensions to allow locale-aware formatting and conversion between related units.

Convert numbers, dates, measurements, and other values to and from locale-aware string representations.

Use predicates, expressions, and sort descriptors to examine elements in collections and other services.