How deeply does Web Components in Action cover mount?

Defines DOM insertion and names mounting methods, but stops short of explaining their detailed execution.

Mount

As explained in Web Components in Action

Mounting is the process of creating a component's rendered representation and inserting it into the DOM.

When does a component become real DOM? Mounting creates the HTML representation of a component and inserts that HTML into the DOM. section 4.4

React places mounting within a broader lifecycle alongside updating, unmounting, and error handling. Its mounting phase includes an overridable constructor and other mounting methods; keep substantial component logic out of the constructor and initialize values needed later. section 4.4

Use the lifecycle comparison to orient the main phases:

Mounting creates and inserts the component’s DOM representation. section 4.4
Updating changes an existing component, while unmounting removes it; error handling isolates failures through React error boundaries. section 4.4

How Web Components in Action covers it

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Also explained in

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Build a Frontend Web Framework (From Scratch)Mounting is the process of creating browser DOM nodes from a virtual DOM tree and inserting them into a parent element.
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React Quickly, Second Edition

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Related concepts

lifecyclepart of · A lifecycle is the sequence of stages or states an entity, process, or artifact passes through during its existence.
virtual DOMuses · A virtual DOM is an in-memory user-interface tree that frameworks compare or process to determine updates to the rendered DOM.
initializerhas part · An initializer is a function, declaration, or language construct that establishes the initial value or state of an object, value, computation, or process.
componentdidmounthas part · componentDidMount is a React class-component lifecycle method invoked after the component has been mounted into the DOM.
unmountingcontrasts with · Unmounting is the lifecycle phase in which a component is removed from the rendered interface and its representation is discarded.

This explainer was generated by Manning's knowledge graph from the text of Web Components in Action. The section links point to the parts of the book it draws on.