Question

我有一个JSON对象数组

array = [{name: "will", age: "18"}
         {name: "Elliott", age: "21"}
        ]

有没有办法让＃34;年龄＆＃34;对于任何给定的＆＃34;名称＆＃34; （就像在查询数据库时使用SQL语句一样？

Answer 1

是

let array = [
  { name: "will", age: "18"}, 
  { name: "john", age: "18"}, 
  { name: "elliott", age: "21"}
]

array.filter((e) => { return e.name === 'john' })

结果

[ { name: 'john', age: '18' } ]

Answer 2

let queryName = 'will';
array.forEach((obj) => {
    if (obj.name === queryName) {
        console.log(obj.name, obj.age); // will 18
    }
});

查询typescript中的对象数组

2 个答案: