textarea passed in as parameter as well as 'this' element
textarea passed in as parameter as well as 'this' element

This makes it easier to work with TypeScript's 'this' in lambdas;

i.e. callback: ta => this.doSomething(ta) //'this' from callback is lost

This may also be an issue with ECMAScript 6 lambdas. This shouldn't be a breaking change, it's just adding a parameter where there wasn't one previously.
jackmoore/autosize,jackmoore/autosize