Скачать или смотреть difference between DOM vs virtual DOM in Tamil.

Real DOM :
Real DOM is the actual structure of the webpage.
React Update complete document in the Real DOM.
React DOM is the actual webpage rendered on the browser any changes made directly reflect on the complete webpage.
The DOM represents the web page often called a document with a logical tree and each branch of the tree ends in a node and each node contains objects.
The developer can modify the content of the document using a scripting language like JavaScript.
The changes and updates to the DOM are fast because of its tree-like structure but re-rendering whole documents makes the DOM Slow.
All UI components need to be re-rendered for every DOM update.

Virtual DOM
Virtual DOM is the virtual representation of Real DOM
React update the state changes in Virtual DOM first and then it syncs with Real DOM
Virtual DOM is just like a blueprint of a machine, can do changes in the blueprint but those changes will not directly apply to the machine.
Virtual DOM is a programming concept where a virtual representation of a UI is kept in memory synced with “Real DOM ” by a library such as ReactDOM and this process is called reconciliation
Virtual DOM makes the performance faster, not because the processing itself is done in less time. The reason is the amount of changed information – rather than wasting time on updating the entire page, you can dissect it into small elements and interactions


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