Get the default value of a text area:
var x = document.getElementById("myTextarea").defaultValue;
Click the button to display the default value of the text area.
<!DOCTYPE html> <html> <body> Address:<br> <textarea id="myTextarea"> PO 1234, Main Street U.S.A. New York</textarea> <button type="button" onclick="myFunction()">Test</button> <p id="demo"></p> <script> function myFunction() {// ww w. j a v a 2s . co m var x = document.getElementById("myTextarea").defaultValue; document.getElementById("demo").innerHTML = x; } </script> </body> </html>