Manual API reference Examples Deploy Subhosting

Deno APIs
Web APIs
Node APIs

Manual
API reference
Examples
Deploy
Subhosting

Cache
Canvas
Crypto
Encoding
Events
Fetch
File
GPU
I/O
Intl
Messaging
Performance
Platform
Storage
Streams
Temporal
URL
Wasm
WebSockets
Workers
Uncategorized
View all 484 symbols

Web

Fetch

HeadersInit

type alias HeadersInit

Definition #

Iterable<string[]> | Record<string, string>

Definition

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.