1let x = list.sort((a, b) => (a.name > b.name ? 1 : -1));

1function compareFirstNames( a, b ) {
2  if ( a.first_name < b.first_name ){
3    return -1;
4  }
5  if ( a.first_name > b.first_name ){
6    return 1;
7  }
8  return 0;
9}
10
11var people =[
12    {"first_name":"Carol", "age":29},
13    {"first_name":"Anna", "age":32},
14    {"first_name":"Bob", "age":32}
15];
16
17people.sort( compareFirstNames ); //people is now sorted by first name from a-z

1function sortByDate( a, b ) {
2  if ( a.created_at < b.created_at ){
3    return -1;
4  }
5  if ( a.created_at > b.created_at ){
6    return 1;
7  }
8  return 0;
9}
10
11myDates.sort(sortByDate);//myDates is not sorted.