How can I group data with an Angular filter?

I have a list of players which belong to a group each. How can I use a filter to list the users per group?

[{name: 'Gene', team: 'team alpha'},
 {name: 'George', team: 'team beta'},
 {name: 'Steve', team: 'team gamma'},
 {name: 'Paula', team: 'team beta'},
 {name: 'Scruath of the 5th sector', team: 'team gamma'}];

I'm looking for this result:

• team alpha
  • Gene
• team beta
  • George
  • Paula
• team gamma
  • Steve
  • Scruath of the 5th sector