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[英]How can I filter an email domain that is a property of an object that is in an array of objects?
[英]How can I filter data by any property within an array of objects?
我正在嘗試用lodash過濾一些數據。
到目前為止,我只通過屬性name
過濾數據。 並且僅在鍵入整個短語時才返回結果。 就像有一個鍵name
具有值Marcos Alonso
並且您僅在搜索框中鍵入Marcos
,它不會返回任何內容。 這也是我要實現的東西。 要返回與搜索框中的值匹配的任何值。
數據數組命名為passengersData
,它看起來像這樣( passengersData
來自Redux存儲):
[
{
"id": 3,
"name": "Marcos Alonso",
"address": "Sabana",
"phone": "712321222",
"pickup": 0,
"cardinalpoint": "N",
"latitude": "9.93683450",
"longitude": "-84.10991830",
"timestamp": "2019-02-19 21:23:46",
"dropofftimestamp": null,
"pickuptimestamp": null,
"deleted": null,
"driver": 1
},
...
]
這是組件:
// imports
const PassengerCardBasedOnRoute = ({
navigationStore,
passengersData,
popupsModalsActionHandler,
searchParam,
}) => {
const filterByDropOffTimestamp = data =>
filter(data, ['dropofftimestamp', null]);
const componentToRenderBasedOnParams = info => (
<PassengersInfo
key={info.id}
id={info.id}
cardinalpoint={info.cardinalpoint}
name={info.name}
address={info.address}
datetime={info.timestamp}
searchParam={searchParam}
callModal={popupsModalsActionHandler}
/>
);
return (
<>
<View>
{passengersData && !searchParam.length &&
filter(filterByDropOffTimestamp(passengersData), [
'name',
searchParam,
]).map(info => componentToRenderBasedOnParams(info))
}
</View>
</>
);
};
export default compose(
connect(
store => ({
passengersData: store.homeScreen.passengersData,
searchParam: store.homeScreen.searchParam,
}),
),
)(PassengerCardBasedOnRoute);
那么在這種情況下我該怎么做才能正確過濾數據?
您可以過濾掉dropofftimestamp
值為null
且具有包含搜索字符串的值的屬性的數組中的每個對象。
例
class PassengerCardBasedOnRoute extends React.Component { state = { passengersData: [ { id: 3, name: "Marcos Alonso", address: "Sabana", phone: "712321222", pickup: 0, cardinalpoint: "N", latitude: "9.93683450", longitude: "-84.10991830", timestamp: "2019-02-19 21:23:46", dropofftimestamp: null, pickuptimestamp: null, deleted: null, driver: 1 } ], searchParam: "" }; onChange = e => { this.setState({ searchParam: e.target.value }); }; render() { const { passengersData, searchParam } = this.state; const search = searchParam.toLowerCase(); const filteredData = passengersData.filter(obj => obj.dropofftimestamp === null && Object.keys(obj).some(key => String(obj[key]) .toLowerCase() .includes(search) ) ); return ( <div> <input value={searchParam} onChange={this.onChange} /> {filteredData.map(obj => ( <div key={obj.id}>{JSON.stringify(obj)}</div> ))} </div> ); } } ReactDOM.render(<PassengerCardBasedOnRoute />, document.getElementById("root"));
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script> <div id="root"></div>
您需要使用Lodash嗎?
const data = [ { "id": 3, "name": "Marcos Alonso", "address": "Sabana", "phone": "712321222", "pickup": 0, "cardinalpoint": "N", "latitude": "9.93683450", "longitude": "-84.10991830", "timestamp": "2019-02-19 21:23:46", "dropofftimestamp": null, "pickuptimestamp": null, "deleted": null, "driver": 1 }, { "id": 3, "name": "Marcos Alonso", "address": "Sabana", "phone": "712321222", "pickup": 0, "cardinalpoint": "N", "latitude": "9.93683450", "longitude": "-84.10991830", "timestamp": "2019-02-19 21:23:46", "dropofftimestamp": "2019-02-19 21:23:49", "pickuptimestamp": null, "deleted": null, "driver": 1 } ]; const filterByDropOffTimestamp = data => data.filter(d => d.dropofftimestamp); const fltrd = filterByDropOffTimestamp(data); console.log(fltrd); // length of 1 returned
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