This content originally appeared on DEV Community and was authored by zain ul abdin
Optional Chaining has to be one of my favorite features in JavaScript!
It helps you safely access properties, even if they are undefined or null, without throwing any errors.
Instead of writing long, messy code to check if each property exists, you can simply use ?.. It shortens your code and makes it much cleaner.
Here's an example:
const user = { profile: { name: 'Alice' } };
// Without Optional Chaining
const userName = user && user.profile && user.profile.name;
// With Optional Chaining
const userName = user?.profile?.name;
Give it a try in your next project—I’m sure you'll be relieved to get rid of those "Cannot read property" errors!
To stay updated with more content related to web development and AI, feel free to follow me. Let's learn and grow together!
This content originally appeared on DEV Community and was authored by zain ul abdin
zain ul abdin | Sciencx (2024-09-02T12:17:05+00:00) Optional chaining is awesome!. Retrieved from https://www.scien.cx/2024/09/02/optional-chaining-is-awesome/
Please log in to upload a file.
There are no updates yet.
Click the Upload button above to add an update.