-1
有这样一个数组:jQuery。只输出其他阵列上的唯一元素?
arr= [{"name":"Vasya","class_id":"1","class":{"id":"1","class":"1"}},
{"name":"John","class_id":"1","class":{"id":"1","class":"1"}},
{"name":"Smith","class_id":"2","class":{"id":"2","class":"2"}}];
能否请你告诉如何在类的唯一值的一个单独的数组带来了什么?