【数组】去除数组中相同的对象

 //去除数组中相同的对象
    deteleObject(obj) {
        var uniques = [];
        var stringify = {};
        for (var i = 0; i < obj.length; i++) {
            var keys = Object.keys(obj[i]);
            keys.sort(function (a, b) {
                return (Number(a) - Number(b));
            });
            var str = '';
            for (var j = 0; j < keys.length; j++) {
                str += JSON.stringify(keys[j]);
                str += JSON.stringify(obj[i][keys[j]]);
            }
            if (!stringify.hasOwnProperty(str)) {
                uniques.push(obj[i]);
                stringify[str] = true;
            }
        }
        uniques = uniques;
        return uniques;
    }