@dhirendra24/get-val v1.0.0

getVal

Get value from Object efficiently.

Getting value from Object is pretty simple in NodeJS, but the only thing annoy me is that it doesn't throw Error if the value is missing. I wrote a simple function that get the value and throw's an Error if value is missing.

Install

npm i @dhirendra24/get-val

Example

const getVal = require('@dhirendra24/get-val');
const mutedGetVal = require('@dhirendra24/get-val').mute();

const obj = {
  'id': '0001',
  'type': 'donut',
  'name': 'Cake',
  'ppu': 0.55,
  'batters': {
    'batter': [
      {'id': '1001', 'type': 'Regular'},
      {'id': '1002', 'type': 'Chocolate'},
      {'id': '1003', 'type': 'Blueberry'},
      {'id': '1004', 'type': 'Devil Food'}
    ]
  }
};

getVal(obj, ['id']);                                  // 0001
getVal(obj, ['batters', 'batter', 0]);                // {'id': '1001', 'type': 'Regular'}
getVal(obj, ['batters', 'batter', 0, 'type']);        // Regular
getVal(obj, ['unknown']);                             // Throws Error
getVal(obj, ['batters', 'batter', 10]);               // Throws Error
getVal(obj, ['unknown'], 'default');                  // default

mutedGetVal(obj, ['id']);                             // 0001
mutedGetVal(obj, ['batters', 'batter', 0]);           // {'id': '1001', 'type': 'Regular'}
mutedGetVal(obj, ['batters', 'batter', 0, 'type']);   // Regular
mutedGetVal(obj, ['unknown']);                        // undefined
mutedGetVal(obj, ['batters', 'batter', 10]);          // undefined
mutedGetVal(obj, ['unknown'], 'default');             // default

Test

npm test