Question 53488 in Javascript Question posted in
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JS convert a list of objects into another – Javascript

I want to convert a list of objects into another in JS like

A = [{"id":"a", "name":"b", "email":"c"}, {"id":"c", "name":"d", "email":"c"}] to
B = [{"id":"a", "value":"b"}, {"id":"c", "value":"d"}]

How to do this?

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2

Answers


  1. 0

    This is just a simple re-mapping of id -> id and name -> value.

    const
  arr = [{"id":"a", "name":"b", "email":"c"}, {"id":"c", "name":"d", "email":"c"}],
  res = arr.map(({ id, name: value }) => ({ id, value }));

console.log(res);

    Here is a more-verbose version:

    const
  arr = [{"id":"a", "name":"b", "email":"c"}, {"id":"c", "name":"d", "email":"c"}],
  res = arr.map(function (item) {
    return {
      id: item.id,
      value: item.name
    };
  });

console.log(res);
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  2. 0

    You can use JavaScript’s array method map to accomplish this.

    Map iterates over each element of the array and returns an array.

    const A = [{"id":"a", "name":"b", "email":"c"}, {"id":"c", "name":"d", "email":"c"}];

const res = A.map(item => {
  return {
    id: item.id,
    value: item.name,
  };
});

console.log(res)
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