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Welcome to Bun Installation Quickstart TypeScript TypeScript 6 and 7

Watch Mode Debugging REPL bunfig.toml File Types Module Resolution JSX Auto-install Plugins File System Router

Cookies File I/O Streams Binary Data Archive SQL SQLite S3 Redis Workers Environment Variables Shell Spawn WebView Cron Node-API FFI C Compiler Transpiler CSRF Protection Secrets Console TOML YAML Markdown JSON5 JSONL HTMLRewriter Image Hashing Glob Semver Color Utils Globals Bun APIs Web APIs Node.js Compatibility

Append content to a file Write a string to a file Write a Blob to a file Write a file to stdout Copy a file to another location Write a file incrementally Write a Response to a file Write to stdout Write a ReadableStream to a file Delete a file

File SystemWrite file

Write a Response to a file

Use Bun.write() to write a Response to disk. The body of the Response is written to the destination.

Write a file incrementally

Bun provides an API for incrementally writing to a file. Use it for large files, or when writing to a file over a long period of time.

Write to stdout

The console.log function writes to stdout and appends a line break to the printed data.