> For the complete documentation index, see [llms.txt](https://docs.digitalriver.com/digital-river-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.digitalriver.com/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components.md).

# Components

Learn about the functionality exposed by components

Components are UI building blocks that allow you to create customizable checkout flows that collect information from and present information to customers.

On this page, you'll find information on:

* [Creating components](#creating-components)
* [The components object](#the-components-object)
* [The component object](#the-component-object)

## Creating components

The [`DigitalRiverCheckout` object](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object.md) exposes [`components()`](#components-configuration).

### `components(configuration)`

This function, which accepts a required [configuration object](#the-components-configuration-object), creates [components](#the-components-object), which you can use to manage one or more [component](#the-component-object) instances.

```javascript
...
let digitalRiverCheckout;
let components;
...
digitalRiverCheckout = new DigitalRiverCheckout(publicApiKey);
components = digitalRiverCheckout.components(configurationOptions);
...
```

#### The components configuration object

Refer to [Configuring components](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/configuring-components.md).

## The components object

The components object, which exposes [`createComponent()`](#createcomponent-componenttype), manages a group of individual [component](#the-component-object) instances.

### `createComponent(componentType)`

The `createComponent()` function, which requires passing a [supported type](#supported-component-types), creates an individual [component](#the-component-object).

```javascript
let paymentComponent;
...
components = digitalRiverCheckout.components(configurationOptions);
paymentComponent = components.createComponent('payment');
```

#### Supported component types

* [`'address'`](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/address-component.md)
* [`'shipping'`](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/shipping-component.md)
* [`'taxidentifier'`](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/tax-identifier-component.md)
* [`'invoiceattribute'`](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/invoice-component.md)
* [`'wallet'`](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/wallet-component.md)
* [`'payment'`](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/payment-component.md)
* [`'compliance'`](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/compliance-component.md)
* [`'ordersummary'`](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/order-summary-component.md)
* [`'thankyou'`](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/thank-you-component.md)

## The component object

The individual component object, which exposes [`mount()`](#mount-elementid) and, in some cases, [`done()`](#done), allows you to collect information from and present information to customers.

### `mount(elementId)`

The `mount()` function, which requires that you pass the `id` of an HTML element, attaches that [component](#the-component-object) to your [DOM](https://en.wikipedia.org/wiki/Document_Object_Model).

```javascript
<div id="payment-container" style="display: block">
...
paymentComponent.mount('payment-container');
...
```

### `done()`

The [address component](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/address-component.md), [tax identifier component](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/tax-identifier-component.md), [shipping component](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/shipping-component.md), and [invoice component](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/invoice-component.md) expose `done()`, which submits a customer's data and returns a boolean indicating whether it's valid. For details, refer to:

* [Submitting the address component](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/address-component.md#submitting-the-address-component)
* [Submitting the tax identifier component](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/tax-identifier-component.md#submitting-the-tax-identifier-component)
* [Submitting the shipping component](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/shipping-component.md#submitting-the-shipping-component)
* [Submitting the invoice component](/digital-river-api/developer-resources/digitalrivercheckout.js-reference/digitalrivercheckout-object/components/invoice-component.md#submitting-the-invoice-component)