#React
React Elements:1. Element Properties:Props: Key-value pairs that configure the element's behavior and appearance.
Children: Nested elements or text content within the element.
Special Props: Certain props have specific meanings, like key for identifying elements in lists.
2. Component and DOM Element Differences:Component: Reusable blueprint with state and lifecycle methods. Renders elements based on its state and props.
DOM Element: Representation of an actual HTML tag in the browser's DOM.
3. Element Creation and Rendering:Elements can be created using
JSX syntax or plain JavaScript objects.
React calls the component function (if the element type is a function) with props to get the rendered elements.
React performs "
reconciliation" to efficiently update the DOM to match the desired elements.
4. Advanced Element Concepts:Fragments: Group multiple children without adding an extra DOM node.
Portals: Render elements to a different part of the DOM tree.
Error Boundaries: Capture errors during rendering and display a fallback UI.
5. Element Structure:An element has a "
type" (critical attribute) and properties.
{
type: Title,
props: {
color: 'red',
children: 'Hello, Title!'
}
}6. Nested Elements for the Render Tree:Elements can be nested to create a render tree, combining both
DOM nodes and components.
{
type: Title,
props: {
color: 'red',
children: {
type: 'h1',
props: {
children: 'Hello, H1!'
}
}
}
}@Diyorbekk_dev
