Instance Property

hash

An unsigned integer that can be used as a hash table address.

Declaration

var hash: Int { get }

Discussion

If two string objects are equal (as determined by the isEqual(to:) method), they must have the same hash value. This property fulfills this requirement.

You should not rely on this property having the same hash value across releases of macOS.

See Also

Identifying and Comparing Strings

func caseInsensitiveCompare(String) -> ComparisonResult

Returns the result of invoking compare(_:options:) with NSCaseInsensitiveSearch as the only option.

func localizedCaseInsensitiveCompare(String) -> ComparisonResult

Compares the string with a given string using a case-insensitive, localized, comparison.

func compare(String) -> ComparisonResult

Returns the result of invoking compare(_:options:range:) with no options and the receiver’s full extent as the range.

func localizedCompare(String) -> ComparisonResult

Compares the string and a given string using a localized comparison.

func compare(String, options: NSString.CompareOptions = []) -> ComparisonResult

Compares the string with the specified string using the given options.

func compare(String, options: NSString.CompareOptions = [], range: NSRange, locale: Any?) -> ComparisonResult

Compares the string using the specified options and returns the lexical ordering for the range.

func localizedStandardCompare(String) -> ComparisonResult

Compares strings as sorted by the Finder.

func hasPrefix(String) -> Bool

Returns a Boolean value that indicates whether a given string matches the beginning characters of the receiver.

func hasSuffix(String) -> Bool

Returns a Boolean value that indicates whether a given string matches the ending characters of the receiver.

func isEqual(to: String) -> Bool

Returns a Boolean value that indicates whether a given string is equal to the receiver using a literal Unicode-based comparison.

struct NSString.CompareOptions

These values represent the options available to many of the string classes’ search and comparison methods.

struct NSString.EncodingConversionOptions

Options for converting string encodings.