How can I transform the Object in this Array of Objects? [duplicate]

Question

Given this array of objects:

arrayBefore: [
        {
            a: "string1",
            b: 10,
        },
        {
            a: "string2",
            b: 20,
        },
]

how can one change the keys using JavaScript for the end result of:

arrayAfter: [
        {
            x: "string1",
            y: 10,
        },
        {
            x: "string2",
            y: 20,
        },
]

Arun Kumar Mohan · Accepted Answer · 2021-02-26 01:29:38Z

2

You can use Array.prototype.map to transform the objects.

const arrayBefore = [{
    a: "string1",
    b: 10,
  },
  {
    a: "string2",
    b: 20,
  },
]

const arrayAfter = arrayBefore.map((item) => ({
  x: item.a,
  y: item.b,
}))

console.log(arrayAfter)

answered Feb 26, 2021 at 1:29

Arun Kumar Mohan

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