1  resize: none;

1function autoResize() {
2	console.log('resizing');
3	textInput.style.height = (textInput.scrollHeight) + 'px';
4}

1$('textarea').each(function () {
2  this.setAttribute('style', 'height:' + (this.scrollHeight) + 'px;overflow-y:hidden;');
3}).on('input', function () {
4  this.style.height = 'auto';
5  this.style.height = (this.scrollHeight) + 'px';
6});