iOS development trivia (object array sorting)

How to sort nsmutablearray that contain custom element types

JSDataModel.h file

@interface Jsdatamodel:nsobject

@property (nonatomic,copy) NSString *username;

@property (nonatomic,copy) NSString *sortnum;

@end

Initializing data

Nsmutablearray *temparray = [Nsmutablearray array];

For (Nsuinteger i =5; i>0; i--) {

Jsdatamodel *model = [[Jsdatamodel alloc]init];

Model.username = @ "UserName";

Model.sortnum = [@ (i) stringvalue];

[Temparray Addobject:model];

}

Excludes all elements in an array of objects

Nssortdescriptor *sorter = [[Nssortdescriptor alloc]initwithkey:@ "Sortnum" ascending:yes];

Nsarray *temp = [Temparray sortedarrayusingdescriptors:@[sorter]];//sorted array

NSLog (@ "%@", temp);

iOS development trivia (object array sorting)