typescript / beginner
Snippet
Optional Chaining
Optional chaining allows you to safely access properties that may be null or undefined. If any part of the chain is missing, it returns undefined instead of throwing a runtime error.
snippet.ts
typescript
1
2
const user = { profile: { name: 'Alice' } };const userName = user?.profile?.name;
Breakdown
1
user?.profile
Checks if 'user' is not null/undefined before accessing 'profile'.
2
?.name
Checks if 'profile' is not null/undefined before accessing 'name'.