const obj = {a: 1, b: 2}
const val1 = obj.c;
const val2 = obj.c || "default"; // fallback
console.log(val1)
console.log(val2)
![](https://media.dev.to/cdn-cgi/image/width=1000,height=420,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2F9mn162xikc6lkbw5clu4.png)
JS Trick Questtions
![](https://media.dev.to/cdn-cgi/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F1279297%2F6b97d021-9c7a-41a7-8c24-1c14b8cbe2c8.png)
const obj = {a: 1, b: 2}
const val1 = obj.c;
const val2 = obj.c || "default"; // fallback
console.log(val1)
console.log(val2)