js 数组对象去重

var term_gpa = [ { year: '2013-2014', term: '1' },

{ year: '2013-2014', term: '1' },

{ year: '2013-2014', term: '1' },

{ year: '2013-2014', term: '1' },

{ year: '2013-2014', term: '1' },

{ year: '2013-2014', term: '1' },

{ year: '2013-2014', term: '1' },

{ year: '2013-2014', term: '1' },

{ year: '2013-2014', term: '1' },

{ year: '2013-2014', term: '2' },

{ year: '2013-2014', term: '2' },

{ year: '2013-2014', term: '2' },

{ year: '2013-2014', term: '2' },

{ year: '2013-2014', term: '2' },

{ year: '2013-2014', term: '2' },

{ year: '2013-2014', term: '2' },

{ year: '2013-2014', term: '2' },

{ year: '2013-2014', term: '2' },

{ year: '2013-2014', term: '2' },

{ year: '2013-2014', term: '2' },

{ year: '2013-2014', term: '2' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' },

{ year: '2014-2015', term: '1' } ]

 

var unique = {};

term_gpa.forEach(gpa=>{ unique[ JSON.stringify(gpa) ] = gpa });

term_gpa = Object.keys(unique).map(u=>{return JSON.parse(u) });