is-obj-props

is-obj-props

A small, yet very useful npm package, which is used to check if an object possess a property or not. Checks for any depth of nested objects

• If the object has the property, it will return the value
• If the property is not present, it returns 'null'

Installation

$ npm i is-obj-props

How to Use

Install and import is-obj-props

import isObjProps from 'is-obj-props';
 
const testObj = {
    name: "UserName",
    age: 25,
    marks: {
        exam1: 98,
        exam2: {
            part1: 47,
            part2: 48
        }
    }
}

isObjProps is a function which takes 2 arguements:

• Arguement 1 - Type: Object - The Object to be tested (testObj in this case)
• Arguement 2 - Type: Array - Array of Property names. The length of the array denotes the depth of the property in nested object.

The examples will make you understand better

console.log(isObjProps(obj, ["name"]));
//UserName
 
console.log(isObjProps(obj, ["FirstName"]));
//null
 
console.log(isObjProps(obj, ["marks","exam1"]));
//98
 
console.log(isObjProps(obj, ["marks","exam2"]));
//{part1: 47, part2: 48}
 
console.log(isObjProps(obj, ["marks","exam3"]));
//null
 
console.log(isObjProps(obj, ["marks","exam2","part2"]));
//48
 
console.log(isObjProps(obj, ["marks","exam2","part3"]));
//null

Benefits

This never lets us face undefined error due to object properties again.

Contribution

You are welcome to raise issues and PRs in the repository