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Just as you can bind to DOM elements, you can bind to component instances themselves. For example, we can bind the instance of <InputField> to a variable named field in the same way we did when binding DOM Elements

	let field;

<InputField bind:this={field} />

Now we can programmatically interact with this component using field.

<button on:click={() => field.focus()}> Focus field </button>

Note that we can't do {field.focus} since field is undefined when the button is first rendered and throws an error.