mapObjectKeys
Using
Function accepts an object and a transformation function, applies the transformation function to each key in the object, and returns a new object with the modified keys.
If value is not object type - function return undefined.
Demo - use JSON
mapObjectKeys( , ){"it new package":"shegit","it new major-version":1}Arguments
| Argument | Type | Description | Example |
|---|---|---|---|
object | object | Object for transform. | { some: "any" } |
transformFn | function | Function for transform object. | (value) => value.toUpperCase() |
Returns
object — Mapped object.
Examples
const object1 = { firstName: 'John', lastName: 'Doe', age: 30 };
const transformFunction1 = (key) => key.toUpperCase();
mapObjectKeys(object1, transformFunction1);
// { FIRSTNAME: 'John', LASTNAME: 'Doe', AGE: 30 }
const object2 = { id: 1, name: 'Alice' };
const transformFunction2 = (key) => `user_${key}`;
mapObjectKeys(object2, transformFunction2);
// { user_id: 1, user_name: 'Alice' }
const object3 = { user: { id: 1, name: 'Alice' }, role: 'admin' };
const transformFunction3 = (key) => key.toUpperCase();
mapObjectKeys(object3, transformFunction3);
// {
// USER: { id: 1, name: 'Alice' },
// ROLE: 'admin',
// }