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[ {name: 'Vasya'}, {name: 'Zina'}, {name: 'Vasya'}, {name: 'Vasya'}, {name: 'Petya'}, {name: 'Vasya'}, {name: 'Petya'}, {name: 'Vasya'}, ]
[ {name: 'Vasya'}, {name: 'Zina'}, {name: 'Petya'}, ]
var keys = {}, has = {}.hasOwnProperty; src = src.filter(function(e){ if(!has.call(keys, e.name))return keys[e.name] = true; });