Javascript Reference - HTML DOM open() Method

The open() method opens an output stream to receive the output from any document.write() or document.writeln() methods.

Syntax

document.open(MIMEtype,replace)

Parameter

Parameter	Description
MIMEtype	Optional. The type of document you are writing to. Default value is text/html
replace	Optional. If set, the history entry for the new document inherits the history entry from the owner document

Browser Support


`open`	Yes	Yes	Yes	Yes	Yes

Example

The following code shows how to open an output stream, add some text, then close the output stream:


<!DOCTYPE html>
<html>
<body>
<button onclick="myFunction()">test</button>
<script>
function myFunction()<!--   w ww .  jav  a  2s. c o m-->
{
  var doc=document.open("text/html","replace");
  var txt="<html><body>this is a test</body></html>";
  doc.write(txt);
  doc.close();
}
</script>

</body>
</html>

The code above is rendered as follows:

Example 2

The following code shows how to open an output stream, add some text, then close the output stream.


<!DOCTYPE html>
<html>
<body>
<button onclick="myFunction()">test</button>
<!--from  w  ww.j  a  v  a2  s . c o  m-->
<script>
function myFunction()
{
    var w=window.open();
    w.document.open();
    w.document.write("<h1>Hello World!</h1>");
    w.document.close();
}
</script>

</body>
</html>

The code above is rendered as follows: