I want to be able to determine if the number of bytes in an instance of NSMutableData is equal to zero. How would I do this?
Simple:
if([data length] == 0) {
//do something
}
where data is your NSMutableData object.
NSMutableData inherits from NSData, so it gains all of the members of NSData.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.