Introducing the Headless Component pattern
The Headless Component pattern unveils a robust avenue to cleanly segregate our JSX code from the underlying logic. While composing a declarative UI with JSX comes naturally, the real challenge lies in managing state. This is where headless components come into play, by shouldering all the state management intricacies and propelling us toward a new horizon of abstraction.
In essence, a Headless Component is a function or object that encapsulates logic but doesn’t render anything itself. It leaves the rendering part to the consumer, thus offering a high degree of flexibility in how the UI is rendered. This pattern can be exceedingly useful when we have complex logic that we want to reuse across different visual representations.
As shown in the following code, the useDropdownLogic
Hook has all the logic but no UI elements, while MyDropdown
uses the headless component and only has to deal with rendering logic:
function useDropdownLogic...