将键值映射到数据中的其他值 [英] Map a key value to the other values in the data

问题描述

假设我有以下格式的数据作为json

Suppose I have data coming as json in the below format

[
    {
        "clauseId": 1,
        "clauseName": "cover",
        "texts": [
            {
                "textId": 1,
                "text": "hello"
            }
        ]
    },
    {
        "clauseId": 3,
        "clauseName": "xyz",
        "texts": [
            {
                "textId": 3,
                "text": "hello Everyone"
            },
            {
                "textId": 4,
                "text": "Some data"
            }
        ]
    }
 {
        "clauseId": 2,
        "clauseName": "joining",
        "texts": [
            {
                "textId": 3,
                "text": "hello1"
            },
            {
                "textId": 4,
                "text": "hello2"
            }
        ]
    }
]

我已经从子句名称中列出了一个列表，例如

I have made a list from clause Name like

c=[joining,xyz]

我想列出文本的来源

d=[hello Everyone,Some data,hello1,hello2]

请提出一些建议

推荐答案

尝试如下:

工作演示

Working Demo

result = [];

constructor() {
  let texts:any[] = this.data.filter(item => this.c.includes(item.clauseName)).sort((a, b) => a.clauseId - b.clauseId).flatMap(x => x.texts);

  this.result = texts.map(x => x.text);
}

这篇关于将键值映射到数据中的其他值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！