ROW Auto Textarea
function auto_grow(element) {
element.style.height = "5px";
element.style.height = (element.scrollHeight)+"px";
}
Busy Buffalo
function auto_grow(element) {
element.style.height = "5px";
element.style.height = (element.scrollHeight)+"px";
}textarea {
resize: none;
overflow: hidden;
min-height: 50px;
max-height: 100px;
}<textarea oninput="auto_grow(this)"></textarea>
Run code snippet