如果對象包含值存在於另一個數組中的屬性，則過濾對象數組

Question

我有以下對象數組。

const abc = [
      {
        sku: 1,
        features: ["Slim"],
        fields: [
          { label: "Material", value: "Material1" },
          { label: "Type", value: "Type1" },
        ]
      },
      {
        sku: 2,
        features: ["Cotton"],
        fields: [
          { label: "Material", value: "Material2" },
          { label: "Type", value: "Type1" },
        ]
      },
      {
        sku: 3,
        features: ["Cotton"],
        fields: [
          { label: "Material", value: "Material3" },
          { label: "Type", value: "Type2" },
        ]
      }
    ];

我只想過濾那些特征和字段值存在於這個中的對象

const fieldsArr = ["Material1", "Material2", "Type1", "Slim"]

預期輸出為

let output = [
      {
        sku: 1,
        features: ["Slim"],
        fields: [
          { label: "Material", value: "Material1" },
          { label: "Type", value: "Type1" },
        ]
      },
      {
        sku: 2,
        features: ["Cotton"],
        fields: [
          { label: "Material", value: "Material2" },
          { label: "Type", value: "Type1" },
        ]
      },
    ]

我解決了這樣的功能部分

abc.forEach(e => {
      if (e.features.some(v => fieldsArr.indexOf(v) !== -1)) {
        output.push(e);
      }
    });

但是我在過濾字段部分時遇到了問題。 有沒有辦法以優化的方式根據上述條件過濾對象。

Answer 1

您還需要迭代嵌套數組。

 const abc = [{ sku: 1, features: ["Slim"], fields: [{ label: "Material", value: "Material1" }, { label: "Type", value: "Type1" }] }, { sku: 2, features: ["Cotton"], fields: [{ label: "Material", value: "Material2" }, { label: "Type", value: "Type1" }] }, { sku: 3, features: ["Cotton"], fields: [{ label: "Material", value: "Material3" }, { label: "Type", value: "Type2" }] }], fieldsArr = ["Material1", "Material2", "Type1", "Slim"], result = abc.filter(({ features, fields }) => features.some(v => fieldsArr.includes(v)) || fields.some(({ value }) => fieldsArr.includes(value)) ); console.log(result);

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Answer 2

使用過濾器，並使用fieldsArr檢查每個項目的features和fields （值）的組合值。

 const abc = [ { sku: 1, features: ["Slim"], fields: [ { label: "Material", value: "Material1" }, { label: "Type", value: "Type1" } ] }, { sku: 2, features: ["Cotton"], fields: [ { label: "Material", value: "Material2" }, { label: "Type", value: "Type1" } ] }, { sku: 3, features: ["Cotton"], fields: [ { label: "Material", value: "Material3" }, { label: "Type", value: "Type2" } ] } ]; const fieldsArr = ["Material1", "Material2", "Type1", "Slim"]; const res = abc.filter(item => [...item.features, ...item.fields.map(x => x.value)].some(fea => fieldsArr.includes(fea) ) ); console.log(res); // Update: more concise using destructure const res2 = abc.filter(({features, fields}) => [...features, ...fields.map(({value}) => value)].some(fea => fieldsArr.includes(fea) ) ); console.log(res2);