Instance Property

hash

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

Declaration

@property(readonly) NSUInteger hash;

Discussion

If two string objects are equal (as determined by the isEqualToString: 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

- caseInsensitiveCompare:

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

- localizedCaseInsensitiveCompare:

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

- compare:

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

- localizedCompare:

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

- compare:options:

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

- compare:options:range:

Returns the result of invoking compare:options:range:locale: with a nil locale.

- compare:options:range:locale:

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

- localizedStandardCompare:

Compares strings as sorted by the Finder.

- hasPrefix:

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

- hasSuffix:

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

- isEqualToString:

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

NSStringCompareOptions

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

NSStringEncodingConversionOptions

Options for converting string encodings.