How Can I Implement a Map Function for Objects in JavaScript?

Object Map Function

JavaScript provides an extensive range of functionality for arrays, including the map function that allows for efficient transformations of array elements. However, there is no built-in map function specifically tailored for objects.

To address this need, a custom implementation similar to Array.prototype.map can be employed for objects:

const myObject = { a: 1, b: 2, c: 3 };

Object.keys(myObject).forEach((key, index) => {
  myObject[key] *= 2;
});

console.log(myObject); // { a: 2, b: 4, c: 6 }

By iterating through the object's keys and updating the values accordingly, this custom implementation achieves the desired transformation. This approach emulates the behavior of the Array.prototype.map function, providing a comparable method for manipulating object values.

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