const object1 = new Object();
object1.property1 = 42;
console.log(object1.hasOwnProperty('property1'));
// expected output: true
console.log(object1.hasOwnProperty('toString'));
// expected output: false
console.log(object1.hasOwnProperty('hasOwnProperty'));
// expected output: false
const object1 = new Object();object1.property1 = 42;console.log(object1.hasOwnProperty('property1'));// expected output: trueconsole.log(object1.hasOwnProperty('toString'));// expected output: falseconsole.log(object1.hasOwnProperty('hasOwnProperty'));// expected output: false