删除重复项javascript数组

I have these 2 arrays

我有这两个数组

var array1 = 
      [ { name: 'placeone', leagueID: '8368223' },
      { name: 'placetwo', leagueID: '6164631' },
      { name: 'placethree', leagueID: '4564836' },
      { name: 'placefour', leagueID: '9722578' },
      { name: 'placefive', leagueID: '9722578' }];
    var array2 = 
      [{name: 'placeone', leagueID: '8368223' },
      {name: 'placetwo', leagueID: '6164631' },
      {name: 'placethree', leagueID: '4564836' },
      {name: 'placefour', leagueID: '9722578' },
      {name: 'placesix', leagueID: '9722578' }];
var array1 =