Native alternativeObject.prototype.hasOwnProperty.call(obj, prop) (or in later versions of node, "Object.hasOwn(obj, prop)") — Use native JavaScript (Node 0.10.0+) Documentation
has
Object.prototype.hasOwnProperty.call shortcut
Installation
npm install --save hasUsage
var has = require('has');
has({}, 'hasOwnProperty'); // false
has(Object.prototype, 'hasOwnProperty'); // true