--- title: Binding to component instances --- Just as you can bind to DOM elements, you can bind to component instances themselves. For example, we can bind the instance of `` to a prop named `field` in the same way we did when binding DOM Elements ```html ``` Now we can programmatically interact with this component using `field`. ```html ``` > Note that we can't do `{field.focus}` since field is undefined when the button is first rendered and throws an error.