javascript - 如何通过将数组传递给函数来删除数组中的空对象 - javascript？

Question

嗨，我有一个从 api 返回的对象。

let ApiData1 = {
    "type": "FeatureCollection",
    "features": [
        {
            "type": "Feature",
            "geometry": {
                "type": "MultiPolygon"
            },
            "properties": {
                "color": 1,
                "id": 10,
                "stateId": 10,
                "name": "Tamil Nadu",
                "code": "TN"
            }
        },
        {
            "type": "Feature",
            "geometry": {
                "type": "MultiPolygon"
            },
            "properties": {
                "color": 1,
                "id": 11,
                "stateId": 11,
                "name": "Karnataka",
                "code": "KA"
            }
        },
        null,
        {
            "type": "Feature",
            "geometry": {
                "type": "MultiPolygon"
            },
            "properties": {
                "color": 1,
                "id": 12,
                "stateId": 12,
                "name": "Pondicherry",
                "code": "PY"
            }
        },
        null,
          {
            "type": "Feature",
            "geometry": {
                "type": "MultiPolygon"
            },
            "properties": {
                "color": 1,
                "id": 1,
                "stateId": 1,
                "name": "Delhi",
                "code": "DL"
            }
        }

    ]
}

在这个数据中，在ApiData1.features。有一些空值重新​​调整。我需要删除这个空值并且必须像这样返回。

输出

{
    "type": "FeatureCollection",
    "features": [
        {
            "type": "Feature",
            "geometry": {
                "type": "MultiPolygon"
            },
            "properties": {
                "color": 1,
                "id": 10,
                "stateId": 10,
                "name": "Tamil Nadu",
                "code": "TN"
            }
        },
        {
            "type": "Feature",
            "geometry": {
                "type": "MultiPolygon"
            },
            "properties": {
                "color": 1,
                "id": 11,
                "stateId": 11,
                "name": "Karnataka",
                "code": "KA"
            }
        },
        {
            "type": "Feature",
            "geometry": {
                "type": "MultiPolygon"
            },
            "properties": {
                "color": 1,
                "id": 12,
                "stateId": 12,
                "name": "Pondicherry",
                "code": "PY"
            }
        },
          {
            "type": "Feature",
            "geometry": {
                "type": "MultiPolygon"
            },
            "properties": {
                "color": 1,
                "id": 1,
                "stateId": 1,
                "name": "Delhi",
                "code": "DL"
            }
        }

    ]
}

无论如何，通过将此 ApiData 传递给函数并像这样返回来实现这一点。你能帮我解决这个问题吗？

提前致谢

标签： javascriptarraysreactjsjavascript-objects

Answer 1

试试这个，它应该有助于摆脱空值

ApiData1.features = ApiData1.features.filter(ob => ob !==null)