javascript - JSON 中的条件过滤

Question

我有这个 JSON 文件 ...

[{
    "Event_code": "AB-001",
    "Interest_area": "Arts and Education",
    "Start_time": "9:00 AM",
    "End_time": "3:00 PM",
    "Session_type": "Course information session"
}, {
    "Event_code": "AB-002",
    "Interest_area": "Arts and Education",
    "Start_time": "12:30 PM",
    "End_time": "1:00 PM",
    "Session_type": "Course information session"
}, {
    "Event_code": "AB-003",
    "Interest_area": "",
    "Start_time": "9:00 AM",
    "End_time": "3:00 PM",
    "Session_type": "Course information session"
}, {
    "Event_code": "AB-004",
    "Interest_area": "Business",
    "Start_time": "10:30 AM",
    "End_time": "11:00 AM",
    "Session_type": "Course information session"
}, {
    "Event_code": "AB-005",
    "Interest_area": "General Interest",
    "Start_time": "9:30 AM",
    "End_time": "1:30 PM",
    "Session_type": "Experience"
}, {
    "Event_code": "AB-006",
    "Interest_area": "Environment ,    Business       ",
    "Start_time": "11:00 AM",
    "End_time": "11:30 AM",
    "Session_type": "Course information session"
}]

我想过滤此 JSON，其中“Session_type”等于“Course information session”，“Interest_area”等于“业务”

到目前为止我已经尝试过......

let search = 'Course information session';
let result = [...new Set(arr.filter(o=>o.Session_type === search && o.Interest_area.trim() !== '' && o.Interest_area === "Business"))]
console.log(result);

此代码仅返回事件代码为“AB-004”而非“AB-006”的事件我想同时返回 AB-004 和 AB-006

有人可以告诉我我做错了什么吗？谢谢

Answer 1

使用String.includes

let arr = [{ "Event_code": "AB-001", "Interest_area": "Arts and Education", "Start_time": "9:00 AM", "End_time": "3:00 PM", "Session_type": "Course information session" }, { "Event_code": "AB-002", "Interest_area": "Arts and Education", "Start_time": "12:30 PM","End_time": "1:00 PM", "Session_type": "Course information session" }, { "Event_code": "AB-003", "Interest_area": "", "Start_time": "9:00 AM", "End_time": "3:00 PM", "Session_type": "Course information session" }, { "Event_code": "AB-004", "Interest_area":"Business", "Start_time": "10:30 AM", "End_time": "11:00 AM", "Session_type": "Course information session" }, { "Event_code": "AB-005", "Interest_area": "General Interest", "Start_time": "9:30 AM", "End_time": "1:30 PM", "Session_type": "Experience" },{ "Event_code": "AB-006", "Interest_area": "Environment , Business ", "Start_time": "11:00 AM", "End_time": "11:30 AM", "Session_type": "Course information session" }];

let search = 'Course information session', interestArea = "Business";
let result = arr.filter(o=> o.Session_type === search && o.Interest_area.includes(interestArea));

console.log(result);

注意:Set只有在你想删除重复项时才使用，但是，数组中没有重复项，因此你可以避免使用它。