Question

如何从JSON数组中删除特定元素（例如：使用其ID）？

删除按钮将执行此任务，并传递其ID。

例如，如何删除id = 2的项目：

注意：id号2可以是10或20的数组索引。

“id”：2，“date”：“2018年3月27日”，“名称”：“名称2”，“类型”： “会议”

        var id = 1;
        var events = [{
                "id": id++,
                "date": "26 Mar 2018",
                "name": "name 1",
                "type": "task"
            },
            {
                "id": id++,
                "date": "27 Mar 2018",
                "name": "name 2",
                "type": "meeting"
            },
            {
                "id": id++,
                "date": "27 Mar 2018",
                "name": "name 3",
                "type": "meeting"
            }

        ];

        events.push({
            "id": id++,
            "date": "25 Mar 2018",
            "name": "name 4",
            "type": "meeting"
        });

Answer 1

你可以这样做

＆＃13;

var events = [{
                "id": 1,
                "date": "26 Mar 2018",
                "name": "name 1",
                "type": "task"
            },
            {
                "id": 10,
                "date": "27 Mar 2018",
                "name": "name 2",
                "type": "meeting"
            },
            {
                "id": 15,
                "date": "27 Mar 2018",
                "name": "name 3",
                "type": "meeting"
            }

        ];
        let entry_to_delete=events.find(e => e.id === 10);
        events.splice(events.indexOf(entry_to_delete),1);
        console.log(events);

＆＃13;

从JSON数组中删除条目

1 个答案: