<!DOCTYPE html> <html> <body> <textarea id="t"></textarea> <script> document.getElementById("t"). appendChild(document.createTextNode("abcdefgh")); document.getElementById("t").appendChild(document.createTextNode("ijkl")); // Flush reflow document.body.offsetWidth; document.getElementById("t"). removeChild(document.getElementById("t").lastChild); </script> </body> </html>