Autosizer

Apply to any textarea on the page and let it automatically resize to fit
any text typed or pasted inside.

Demo: http://kanecohen.github.io/autosizer/

Usage

Autosizer can be inserted into page as an ordinary script, or it could be
loaded as an AMD or CommonJS module.

Autosizer also support usage as a jQuery plugin, but jQuery is not required.

var Autosizer = require('autosizer');
var as = new Autosizer('.my-textarea');

Options

Besides an element, autosizer accepts an object with several possible options

follow: true When set to true, scrollbar will always try to stay in a constant
position related to where typing caret is located.

viewportMargin: null Limits maximum height before textarea hits bottom of the
viewport.