一道js问题求助一下

一道js问题求助一下

//1.需求遍历listData,将数组key和对象key相匹配,如果匹配则将对象的value赋值给数组的value

let listData= [

{ name: "张三:", key: "authenNo",value:''},

{ name: "李四:", key: "extendedRepair" ,value:''},

{ name: "赵恶:", key: "newCarSaleDate", value:''},

{ name: "王五:", key: "lastAuthenDate" ,value:''},

{ name: "笨蛋:", key: "gap" ,value:''},

];

let Obj={

authenNo:'我才不是张三呢',

extendedRepair:'我才不是李四',

lastAuthenDate:'我才不是王五',

newCarSaleDate:'我才不是赵恶'

},

最后的操作结果应为:
listData= [

    { name: "张三:", key: "authenNo",value:'我才不是张三呢'},

{ name: "李四:", key: "extendedRepair" ,value:'我才不是李四'},

{ name: "赵恶:", key: "newCarSaleDate", value:'我才不是赵恶'},

{ name: "王五:", key: "lastAuthenDate" ,value:'我才不是王五'},

{ name: "笨蛋:", key: "gap" ,value:''},

];


回答:

//不支持 ?? 就用 || 代替下

//listData.forEach(item => item.value = Obj[item.key] ?? item.value)

listData.forEach(item => item.value = Obj[item.key] || item.value)

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