如何从react中的嵌套对象数组中获取计数值

Question

我想在获得计数后向对象数组中添加一些属性。

const data = [ 
{ id:4, name:'sam',stats:[{id:1, partnerId:4, applicatiions:4, drafts:5},{id:2, partnerId:4, applicatiions:1, drafts:2}]},
{ id:5, name:'kam',stats:[{id:1, partnerId:5, applicatiions:2, drafts:3}]},
{ id:6, name:'jam',stats:[]},
{ id:7, name:'ram',stats:[{id:1, partnerId:7, applicatiions:9, drafts:5},{id:2, partnerId:7, applicatiions:2, drafts:5}]}
]

其结果应是：

[ 
{ id: 4, name:'sam', applicatiions:5, drafts:7}, 
{ id: 5, name:'kam', applicatiions:2, drafts:3},
{ id: 6, name:'jam', applicatiions:0, drafts:0},
{ id: 7, name:'ram', applicatiions:11, drafts:10},
]

Answer 1

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const data = [ 
{ id:4, name:'sam',stats:[{id:1, partnerId:4, applicatiions:4, drafts:5},{id:2, partnerId:4, applicatiions:1, drafts:2}]},
{ id:5, name:'kam',stats:[{id:1, partnerId:5, applicatiions:2, drafts:3}]},
{ id:6, name:'jam',stats:[]},
{ id:7, name:'ram',stats:[{id:1, partnerId:7, applicatiions:9, drafts:5},{id:2, partnerId:7, applicatiions:2, drafts:5}]}
]

const items = data.map(item=> {return {...item, applicatiions: item.stats.reduce((partialSum, stat) => partialSum + stat.applicatiions ,0), drafts: item.stats.reduce((partialSum, stat) => partialSum + stat.drafts ,0)}});

console.log(items.map(({stats, ...rest}) => rest ))

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