Lightning Components Developer’s Guide

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Component Namespace

Every component is part of a namespace, which is used to group related components together. If your organization has a namespace prefix set, use that namespace to access your components. Otherwise, use the default namespace to access your components.

Another component or application can reference a component by adding <myNamespace:myComponent> in its markup. For example, the helloWorld component is in the auradocs namespace. Another component can reference it by adding <auradocs:helloWorld /> in its markup.

Lightning components that Salesforce provides are grouped into several namespaces, such as aura, ui, and force. Components from third-party managed packages have namespaces from the providing organizations.

In your organization, you can choose to set a namespace prefix. If you do, that namespace is used for all of your Lightning components. A namespace prefix is required if you plan to offer managed packages on the AppExchange.