Swift has a variety of basic data types to represent different kinds of values

Swift has a variety of basic data types to represent different kinds of values. Here's a table summarizing them, along with their typical sizes and value ranges:

32-bit Int: -2,147,483,648 to 2,147,483,647

64-bit Int: -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807

Data Type	Description	Size (bits)	Range/Values	Example
Numeric
Int	Signed integer (platform dependent)	32 or 64	-2^31 to (2^31)-1 (32-bit) -2^63 to (2^63)-1 (64-bit)	10, -5, 1234567890
Int8	Signed integer	8	-128 to 127	10, -5
Int16	Signed integer	16	-32768 to 32767	10000, -2000
Int32	Signed integer	32	-2,147,483,648 to 2,147,483,647	123456789, -1000000
Int64	Signed integer	64	-9,223,372,036,854,775,808 to 9,223,372,036,854,775,807	1000000000000, -5000000000
UInt	Unsigned integer (platform dependent)	32 or 64	0 to (2^32)-1 (32-bit) 0 to (2^64)-1 (64-bit)	10, 1234567890
UInt8	Unsigned integer	8	0 to 255	10, 200
UInt16	Unsigned integer	16	0 to 65535	10000, 60000
UInt32	Unsigned integer	32	0 to 4,294,967,295	123456789, 4000000000
UInt64	Unsigned integer	64	0 to 18,446,744,073,709,551,615	1000000000000, 10000000000000
Float	Floating-point	32	±1.40129846432481707e-45 to ±3.40282346638528860e+38 (~6 decimal digits precision)	3.14f, -2.5f
Double	Floating-point	64	±4.94065645841246544e-324 to ±1.79769313486231570e+308 (~15 decimal digits precision)	3.14159, -2.71828
Text
Character	Single character	Variable (UTF-8 encoding)	Any valid Unicode character	'a', '?', '한'
String	Sequence of characters	Variable (UTF-8 encoding)		"Hello", "Swift"
Boolean
Bool	Boolean value	8	true, false
Other
Array	Ordered collection of elements of the same type	Variable		[1, 2, 3], ["a", "b"]
Dictionary	Collection of key-value pairs	Variable		["name": "Alice", "age": 30]
Set	Unordered collection of unique elements	Variable		[1, 2, 3]
Optional	Represents a value that may be absent (nil)			let optionalInt: Int? = nil

Notes:

• Size: The size of String, Array, Dictionary, and Set types is dynamic and depends on the content.
• Integer size: Swift provides both platform-dependent (Int, UInt) and fixed-size integer types. Use the platform-dependent ones for most cases, as they are optimized for the current system.
• Character size: Swift uses UTF-8 encoding for characters, so the size of a Character can vary depending on the character.

This table provides a good overview of Swift's basic data types. Remember that efficient memory management is handled by Swift's Automatic Reference Counting (ARC), so you usually don't need to worry about the exact size of these types in your everyday coding.