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如何將單個鍵值對對象轉換為具有鍵值對的對象數組？

JavaScript

千萬里不及你 2023-03-24 16:26:28

我有一個鍵值對的單個對象，每個鍵都有一個數組作為值，如何通過將它與另一個對象數組進行比較，將其轉換為具有鍵值對屬性的對象數組。var keys = [];for (var k in obj) keys.push(k);輸入：obj = { "name": "jack", "age": 10, "country": "india", "state": "Delhi" } obj2 = [{key: "product", type:"", value:"", required:"true", mandatory:"true"}, {key: "sub-product", type:"", value:"", required:"true", mandatory:"true"}, {key: "name", type:"text", value:"", required:"true", mandatory:"true"}, {key: "age", type:"text", value:"[0-9]", required:"true", mandatory:"true"}, {key: "country", type:"text", value:"[a-z]", required:"true", mandatory:"true"}, {key: "state", type:"text", value:"[a-z]", required:"true", mandatory:"true"}]預期輸出：result = [{key: "name", type:"text", value:"", required:"true", mandatory:"true",setValue:"jack"}, {key: "age", type:"text", value:"[0-9]", required:"true", mandatory:"true",setValue:"10"}, {key: "country", type:"text", value:"[a-z]", required:"true", mandatory:"true",setValue:"india"}, {key: "state", type:"text", value:"[a-z]", required:"true", mandatory:"true",setValue:"Delhi"}];

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3 回答

ABOUTYOU

TA貢獻1812條經驗獲得超5個贊

循環結束obj2。如果該key值是的屬性obj，則將相應的值復制到setValue對象的屬性中，并將其壓入結果。

obj = {

"name": "jack",

"age": 10,

"country": "india",

"state": "Delhi"

};

obj2 = [{key: "product", type="", value="", required="true", mandatory="true"},

{key: "sub-product", type="", value="", required="true", mandatory="true"},

{key: "name", type="text", value="", required="true", mandatory="true"},

{key: "age", type="text", value="[0-9]", required="true", mandatory="true"},

{key: "country", type="text", value="[a-z]", required="true", mandatory="true"},

{key: "state", type="text", value="[a-z]", required="true", mandatory="true"}];

var result = [];

obj2.forEach(o => {

if (o.key in obj) {

o.setValue = obj[o.key];

result.push(o);

}

});

console.log(result);

反對回復 2023-03-24

LEATH

TA貢獻1936條經驗獲得超7個贊

您可以先使用過濾它hasOwnProperty，然后將其映射到設置setValue屬性。這是實現：

var obj = { "name": "jack", "age": 10, "country": "india", "state": "Delhi" };

var obj2 =[{key: "product", type:"", value:"", required:"true", mandatory:"true"}, {key: "sub-product", type:"", value:"", required:"true", mandatory:"true"}, {key: "name", type:"text", value:"", required:"true", mandatory:"true"}, {key: "age", type:"text", value:"[0-9]", required:"true", mandatory:"true"}, {key: "country", type:"text", value:"[a-z]", required:"true", mandatory:"true"}, {key: "state", type:"text", value:"[a-z]", required:"true", mandatory:"true"}];

var result = obj2.filter(k=>obj.hasOwnProperty(k.key)).map(p=>({...p, setValue:obj[p.key]}));

console.log(result);

反對回復 2023-03-24

撒科打諢

TA貢獻1934條經驗獲得超2個贊

你可以使用Array.prototype.flatmap來實現這個

const obj = {

"name": "jack",

"age": 10,

"country": "india",

"state": "Delhi"

}

const obj2 = [

{key: "product", type:"", value:"", required:"true", mandatory:"true"},

{key: "sub-product", type:"", value:"", required:"true", mandatory:"true"},

{key: "name", type:"text", value:"", required:"true", mandatory:"true"},

{key: "age", type:"text", value:"[0-9]", required:"true", mandatory:"true"},

{key: "country", type:"text", value:"[a-z]", required:"true", mandatory:"true"},

{key: "state", type:"text", value:"[a-z]", required:"true", mandatory:"true"}

]

const result = obj2.flatMap((entry) => {

if (obj[entry.key]) {

return {

...entry,

setValue: obj[entry.key],

}

return []

})

console.log(result)

反對回復 2023-03-24

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如何將單個鍵值對對象轉換為具有鍵值對的對象數組？

如何將單個鍵值對對象轉換為具有鍵值對的對象數組？

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