根据 object 值 Javascript ES6 过滤嵌套的对象数组

Question

我正在尝试针对作为字符串的search变量过滤下面的对象数组。 因此，用户可以根据标题、年份或人名进行搜索

array = [{
    "title": "Test",
    "year": 2018,
    "people": [
      {
        "name": "person1"
      },
      {
        "name": "person2"
      }],
  },
  {
    "title": "Test2",
    "year": 2018,
    "people": [
      {
        "name": "person3"
      },
      {
        "name": "person4"
      },
      {
        "name": "person5"
      }],
   },...]

我写了下面的 function，它适用于标题和年份，但我不知道如何搜索 function 中的人员数组。 我知道如何在没有 ES6 的情况下做到这一点，但我更喜欢 ES6，这仍然让我感到困惑：

filteredArray() {
            let search = this.search.toLowerCase();
            return this.array.filter(function (item) {
                    return Object.values(item).some(val =>
                        String(val).toLowerCase().includes(search));
            })
        },

this.search是保存用户输入值的v-model 。这是Codepen

我感谢您的帮助：）

Answer 1

以下代码有助于您的用例

   var searchString = 'person5';

   let result = array.filter(ele => 
    ele.title.includes(searchString)
    || `${ele.year}`.includes(searchString)
    || ele.people.some(pele => pele.name.includes(searchString))
   )
   console.log(JSON.stringify(result));

Answer 2

创建搜索字符串的 Map/hash 以轻松搜索：

 const array = [{ "title": "Test", "year": 2018, "people": [ { "name": "person1" }, { "name": "person2" }], }, { "title": "Test2", "year": 2018, "people": [ { "name": "person3" }, { "name": "person4" }, { "name": "person5" }], }]; let map = array.reduce((map,item,i)=>{ let values = Object.values(item); let persons = values.pop().map(e=>e.name); [...values,...persons].forEach(e=>map.set(String(e).toLowerCase(),i)) return map; },new Map()); //console.log(...map); ['person1','person3','Test2'].forEach(e=>console.log({[e]:array[map.get(String(e).toLowerCase())]}))

对于 Vue，请尝试

filteredArray() {
    let search = this.search.toLowerCase();
    let arr2d = this.arr2d;
    if(typeof arr2d ==="undefined"){
     arr2d = this.array.reduce((arr,item)=>{
      let values = Object.values(item);
      let persons = values.pop().map(e=>e.name);
      arr.push([...values,...persons]);
      return arr;
     },[]);
    }
    return this.array.filter((item,i)=>arr2d[i].some(el=>
        String(el).toLowerCase().includes(search)))
    }