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在對象中特定鍵值的末尾附加另一個值

JavaScript

慕村9548890 2023-09-28 17:08:59

我有一個對象數組，如下所示：const sample = [{ key:"key1", title: "title1", value: "value1"},{ key:"key2", title: "title2", value: "value2"},{ key:"key3", title: "title3", value: "value3"}]現在我想在每個對象“標題”鍵的末尾附加一些值，如下所示：const sample = [{ key:"key1", title: "title1 + 1", value: "value1"},{ key:"key2", title: "title2 + 2", value: "value2"},{ key:"key3", title: "title3 + 3", value: "value3"}]我知道如何修改、添加密鑰，但不確定如何以這種方式附加數據。請針對上述問題提出一些解決方案。

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3 回答

慕森王

TA貢獻1777條經驗獲得超3個贊

您可以通過獲取值的索引來映射對象。

const

sample = [{ key:"key1", title: "title1", value: "value1" }, { key:"key2", title: "title2", value: "value2" }, { key:"key3", title: "title3", value: "value3" }],

result = sample.map((o, i) => ({ ...o, title: o.title + (i + 1) }));

console.log(result);

.as-console-wrapper { max-height: 100% !important; top: 0; }

反對回復 2023-09-28

繁星coding

TA貢獻1797條經驗獲得超4個贊

希望這會有所幫助:) 根據需要在地圖中轉換值！:)

const sample = [

{

key:"key1",

title: "title1 + 1",

value: "value1"

{

key:"key2",

title: "title2 + 2",

value: "value2"

{

key:"key3",

title: "title3 + 3",

value: "value3"

}

];

const other = sample.map(val => ({...val, title: val.title + 'anything'}));

console.log(other);

反對回復 2023-09-28

慕桂英4014372

TA貢獻1871條經驗獲得超13個贊

const sample = [

{

key:"key1",

title: "title1",

value: "value1"

{

key:"key2",

title: "title2",

value: "value2"

{

key:"key3",

title: "title3",

value: "value3"

}]

let result = sample.map((x, i) => {

x.title = x.title + ' + ' + (i + 1);

return x;

});

console.log(result);

反對回復 2023-09-28

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在對象中特定鍵值的末尾附加另一個值

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