Updating a Hook at the Mount
Learn how React manages and utilizes Hooks for function component updates.
We'll cover the following...
Updating a function component
React updates a function component through an updateFunctionComponent function. The input arguments accept a Component function and its props input:
function updateFunctionComponent(Component, props) {// Initializing the previous hook to null (assumes it's used for managing state in the component)prevHook = null;// Invoking the function component to get its childrenlet children = Component(props);}
Updating the Fiber tree
The main job of the update function is to invoke Component (props) to know the new children element. Taking a Title component as an example, when it gets to be updated, the ...