Rename the object key

Question

I have an array of objects where I want to rename the key name as shown:

let Options = [{Code: 1, Label: 'abc'}, {Code: 2, Label: 'xyz'}, {Code: 3, Label: 'fgh'}];

I want to change the key 'Code' to 'value' as shown:

let Options = [{value: 1, Label: 'abc'}, {value: 2, Label: 'xyz'}, {value: 3, Label: 'fgh'}];

How I can accomplish the desired output.

Please do some research before asking. It is trivial to find similar questions. — str, Jun 23 '20 at 21:52

score 2 · Answer 1 · answered Jun 23 '20 at 21:49

2

You can do it using map like this:

let Options = [{Code: 1, Label: 'abc'}, {Code: 2, Label: 'xyz'}, {Code: 3, Label: 'fgh'}];
const res = Options.map(elem => {
  elem.value = elem.Code;
  delete elem.Code;
  return elem;
});

answered Jun 23 '20 at 21:49

mgm793

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value is undefine in the end result as {value: undefined, Label: 'abc'} – Mohsin Jun 23 '20 at 22:02
It works fine for me. – mgm793 Jun 23 '20 at 22:06
it worked for me: `const resultArray = Options.map(elm => ({ value: elm.Code, Label: elm.Label}));` Thanks! – Mohsin Jun 23 '20 at 22:25

Rename the object key

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