Safely accessing deeply nested values ⚡️
- Install it using npm:
$ npm install propx
- or yarn:
$ yarn add propx
Usage
import { set, get } from 'propx';
const obj = {
a: 1,
b: 2,
c: { d: { e: { f: 3 } } },
g: undefined
};
console.log(get(obj, 'c.d.e.f', ''))
//-> 3
console.log(set(obj, 'g.x.y.z', ['hey']))
/* -> {
a: 1,
b: 2,
c: { d: { e: { f: 3 } } },
g: { x: { y: { z: [ 'hey' ] } } }
}
*/
Definition
/**
* @param {object} object base object to inject new prop
* @param {string} path path to set the object
* @param {any} value value to set
*/
function set(object: Object, path: string, value: any): Object {
...
}
/**
*
* @param {object} object object to access
* @param { string | string[] } key string or array with dot notation path
* @param { any } def optional parameter for default if the full key in path is missing
* @param {*} p counter for loop
* @param {*} undef undefined by default
*/
function get(object: Object, key: string | string[], def: any, p?: number, undef?: undefined) {
...
}