HTML DOM open() method

open()The method opens an output stream to collect any output that isdocument.write()ordocument.writeln()the output of the method.

You can usedocument.close()Close the opened document.

If a document already exists in the target, clear it.

Do not use this method withwindow.open()Method obfuscation:

document.open() allows you to overwrite the current document or append to the current document
The window.open() method provides a way to open a new window while keeping the current document unchanged

Syntax:

document.open(MIMEtype,　replace)

Example

document.open();
document.write("<p>Unique Content.</p>
document.close();

All browsers fully support the open() method:

Method
open()	Yes	Yes	Yes	Yes	Yes

Parameter	Description
MIMEtype	(Optional) The document type you want to write (default is "text", / html
replace	(Optional) If set, the new document's history entry will inherit the history entry of the document opened by the document

Return value:	None
DOM Version:	DOM 2Level

Using Parameters: Open the output stream, add some text, and then close the stream:

Example

document.open("text/html
document.write("<p>Unique Content.</p>
document.close();

Use window.open() and document.open() to open a stream in a new window, add some text, and then close the stream:

Example

var w = window.open();
w.document.open();
w.document.write("<h1>Unique Content</h1">);
w.document.close();

DOM Document write()Methods

DOM Document writeln()Methods

DOM Document close()Methods

window open()Methods