FBSDKHashtag
@interfaceFBSDKHashtag:NSObject<NSCopying,NSObject,NSSecureCoding>Represents a single hashtag that can be used with the share dialog.
@interfaceFBSDKHashtag:NSObject<NSCopying,NSObject,NSSecureCoding>stringRepresentation property.+(nonnullinstancetype)hashtagWithString:(nonnullNSString*)hashtagString;convenienceinit(_hashtagString:String)stringRepresentation is a valid hashtag (a single ‘#’ followed by one or more word characters). Invalid hashtags are ignored when sharing content. You can check validity with the valid property.@property(nonatomic,copy,readwrite)NSString*_NonnullstringRepresentation;varstringRepresentation:String{getset}@property(nonatomic,assign,unsafe_unretained,readonly,getter=isValid)BOOLvalid;varisValid:Bool{get}-(BOOL)isEqualToHashtag:(nonnullFBSDKHashtag*)hashtag;funcisEqual(tohashtag:Hashtag)->Bool