Utilizing libraries such as Lodash or Ramda
Libraries like Lodash and Ramda provide utility functions to work with objects and collections. These libraries offer functions such as _.mapValues() in Lodash or R.map() in Ramda, which can be used to recursively map objects with ease.
Example: The below code uses the Lodash library to recursively iterate an object in JavaScript.
const _ = require('lodash');
const obj = {
a: 1,
b: {
c: 2,
d: {
e: 3
}
}
};
const fn = value => value * 2;
const mapObject =
(obj, fn) => _.mapValues
(obj, value => typeof value === 'object' &&
value !== null ?
mapObject(value, fn) :
fn(value));
const mappedObject = mapObject(obj, fn);
console.log(mappedObject);
Output:
{ a: 2, b: { c: 4, d: { e: 6 } } }
How to Recursively Map Object in JavaScript ?
Recursively mapping objects in JavaScript involves traversing through nested objects and applying a function to each key-value pair. This process allows for transforming the structure of an object according to a specific logic or requirement.
Below are the approaches to recursively map an object in JavaScript:
Table of Content
- Using a Recursive Function
- Using Object.keys() and Array.reduce()
- Utilizing libraries such as Lodash or Ramda
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