var arr=[
{ "name": "bob", "age": 20
},
{ "name": "jane", "age": 21
},
{ "name": "joe", "age": 22
}
]已知name，如何獲取age除了map等遍歷還有別的方法嗎
已知數(shù)組中某對(duì)象下某鍵值對(duì)的value，如何獲取同級(jí)key的value
犯罪嫌疑人X
2018-09-24 15:00:57