Manual API reference Examples Deploy Subhosting

Deno APIs
Web APIs
Node APIs

Manual
API reference
Examples
Deploy
Subhosting

Cloud
Errors
FFI
Fetch
File System
GPU
HTTP Server
I/O
Jupyter
Linter
Network
Permissions
Runtime
Subprocess
Telemetry
Testing
WebSockets
View all 491 symbols

Deno

.

.

TSUndefinedKeyword

interface Deno.lint.TSUndefinedKeyword

unstable

Properties #

#type: "TSUndefinedKeyword"

#range: Range

Properties
- type
- range

Deno Docs

Deno Runtime
Deno Deploy
Deno Subhosting
Examples
Standard Library

Community

Discord
GitHub
Twitter
YouTube
Newsletter

Help & Feedback

Community Support
Deploy System Status
Deploy Feedback
Report a Problem

Company

Blog
Careers
Merch
Privacy Policy

Copyright © 2025 the Deno authors.