---
title: Document.writeln()
slug: Web/API/Document/writeln
tags:
  - API
  - DOM
  - Method
  - Reference
browser-compat: api.Document.writeln
---
{{ ApiRef("DOM") }}

Writes a string of text followed by a newline character to a document.

## Syntax

    document.writeln(line);

### Parameters

- `line` is string containing a line of text.

## Example

    document.writeln("<p>enter password:</p>");

## Notes

**document.writeln** is the same as {{domxref("document.write")}} but adds a newline.

> **Note:** **document.writeln** (like **document.write**) does not work in XHTML documents (you'll get a "Operation is not supported" (`NS_ERROR_DOM_NOT_SUPPORTED_ERR`) error on the error console). This is the case if opening a local file with a .xhtml file extension or for any document served with an application/xhtml+xml MIME type. More information is available in the [W3C XHTML FAQ](https://www.w3.org/MarkUp/2004/xhtml-faq#docwrite).

## Specifications

{{Specifications}}

## Browser compatibility

{{Compat}}
