How does js merge some items in an array of objects?

Source data: 

data: [
{
    parkId: 1,
    scheduleId: 1,
    hasStock: false
},
{
    parkId: 1,
    scheduleId: 2,
    hasStock: false
},
{
    parkId: 1,
    scheduleId: 3,
    hasStock: false
},
{
    parkId: 2,
    scheduleId: 1,
    hasStock: false
},
{
    parkId: 2,
    scheduleId: 2,
    hasStock: false
},
{
    parkId: 2,
    scheduleId: 3,
    hasStock: false
}
]

expect items with the same parkId to be merged into the following format: 

[
    {
        parkId: 1,
        date: [
            {
                scheduleId: 1,
                hasStock: false
            },
            {
                scheduleId: 2,
                hasStock: false
            },
            {
                scheduleId: 3,
                hasStock: false
            }
        ]
    },
    {
        parkId: 2,
        date: [
            {
                scheduleId: 1,
                hasStock: false
            },
            {
                scheduleId: 2,
                hasStock: false
            },
            {
                scheduleId: 3,
                hasStock: false
            }
        ]
    }
]

do you bosses have any more elegant ways

Deduplicating-with-javascript array
Mar.23,2022 
let uniqueObj = {};
let result = data.map( item => {
    return {
        parkId: item.parkId,
        data: data.filter( childItem => childItem.parkId === item.parkId)
    }
}).reduce( (array, item) => {
    if(!uniqueObj[`parkId${item.parkId}`]) {
        array.push(item);
        uniqueObj[`parkId${item.parkId}`] = true;
    }
    return array;
}, []);
uniqueObj = null; //
console.log(result);

Previous: Solr highlight range is incorrect, range is expanded, irrelevant content is highlighted, if solved?

Next: Can the class of ES6 specify the method that invokes the parent class itself in the parent class?

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
© 2021 CodesHelper
Advertising Contact us About us
Menu