has-deep-prop v1.0.5

An objects deep property can easily and safely be checked. The object can be a regular javascript object or an array or any level of depth of their mixed kind. If the property is found then it will return the value of that property otherwise will return undefined.

Installation

To install the package run

$ npm install has-deep-prop

Usage

const hasDeep = require('has-deep-prop');
const deepObject = { name: { first:"John", last:"Doe" } };
const firstName = hasDeep(deepObject, "name.first"); // <= "John"

Params

• It takes 2 parameter.
• The object and deepKey.
• object {object}: The object whose value to check. Object can be null, empty, undefined, array or mix.
• deepKey {string}: The deep key in string format. Dot notation should be used. If the object is an array then the index should be added as property.

Example:

const hasDeep = require('has-deep-prop');
const deepObject = { person: [{ address:[{city:"Dhaka"}, {city:"Chittagong"}] }] };
const city1 = hasDeep(deepObject, "person.0.address.0.city"); // <= "Dhaka"
const city2 = hasDeep(deepObject, "person.0.address.3.city"); // <= undefined