[英]How to append or add string to existing property in an object?
a={
propA="abcd@x.com",
propb="123",
propc="USA"}
b={
propA="xyz@x.com",
propb="566",
propc="Ind"}
如果我必須將對象 b 的 PropA 附加到 a 的 propA,我該怎么辦?
預期輸出:它可以是數組或新對象
a={
propA=["abcd@x.com","xyz@x.com"]
propb="123",
propc="USA"}
你可以用方括號[]
把它包起來
const a = { propA: "abcd@x.com", propb: "123", propc: "USA", } const b = { propA: "xyz@x.com", propb: "566", propc: "Ind", } a.propA = [a.propA, b.propA] console.log(a)
let yourKey = 'propA'; // in your case you want to update propA
a[yourKey] = [a[yourKey], b[yourKey]];
console.log(a);
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