How does a backend CMS block form define the data to be passed to its UI component on the client (JavaScript) side?

Development UI Components

dmitrii_fediuk (Dmitrii Fediuk) February 21, 2016, 9:57am 2

See also:

How is initialization / configuration data set to an UI component?
How does a backend CMS page form define the data to be passed to its UI component on the client (JavaScript) side?
How does a backend product form define the data to be passed to its UI component on the client (JavaScript) side?
How to define the metadata to be passed to an UI component on the client (JavaScript) side?
How is initialization / configuration metadata set to an UI component?