In addition to them, TextareaAutosize comes with some optional custom props to facilitate its usage:

|Name|Type|Default|Description|
|----|----|-------|-----------|
| onResize | Function | | optional. Called whenever the textarea resizes |
| rows | Number | | optional. Minimum number of visible rows |
| maxRows | Number | | optional. Maximum number of visible rows |
| async | Boolean | false | optional. Initialize autosize asynchronously. Enable it if you are using StyledComponents. This is forced to true when maxRows is set. Async initialization will make your page "jump" when the component appears, as it will first be rendered with the normal size, then resized to content.
| ref | Function | | optional. Ref to the DOM node |


#### onResize

Sometimes you may need to react any time TextareaAutosize resizes itself. To do so, you should use the optional callback onResize which will be triggered at any resize with the autosize:resized event object:

`jsx
function onResize(event) {
console.log(event.type); // -> "autosize:resized"
}


`

#### Set min/max height
You can set minHeight and maxHeight through CSS or inline-style as usual:

`jsx
// min-height: 20px; max-height: 80px;
`

NB: you may need to take into account borders and/or padding.


In addition to minHeight, you can force TextareaAutosize to have a minimum number of rows by passing the prop rows:

`jsx
// minimun height is three rows
`

In addition to maxHeight, you can force TextareaAutosize to have a maximum number of rows by passing the prop maxRows:

`jsx
// maximum height is three rows
`

#### Refs to DOM nodes
In order to manually call textarea's DOM element functions like focus() or blur(), you need a ref to the DOM node.

You get one by using the prop ref as shown in the example below:

`jsx
class Form extends React.Component {
constructor() {
this.textarea = React.createRef()
}

componentDidMount() {
this.textarea.current.focus();
}

render() {
return (

);
}
}
``

Browser Compatibility

Credits

Check out his repo or website for more documentation.