I was getting ready to add a jQuery plugin to support maxlength on textarea's and noticed that the MaxLength attribute is working natively on Safari, Chrome, and Firefox.
Is this thanks to HTML5 or ? Does that means having a maxlength on textareas no longer requires a jQuery type plugin?
Thanks
Yes, maxlength was added to <textarea> in HTML5, so that's why you're seeing the behavior in newer browsers.
Do you need a plugin? that depends...if you need to support older browsers, then yes.
来源：https://stackoverflow.com/questions/4372413/textarea-maxlength-supported-or-not-supported