check if an object has an attribute code example

Example 1: js check if object has property

const object1 = new Object();
object1.property1 = 42;

console.log(object1.hasOwnProperty('property1'));
// expected output: true

Example 2: how to check element has an attribute js

let result = element.hasAttribute(name);

Example 3: python3 check if object has attribute

try:
    doStuff(a.property)
except AttributeError:
    otherStuff()