Most important react js interview questions #interview #reactjsinterviewquestions #javascript #html

// What is Virtual DOM?
The Virtual DOM is a lightweight copy of the actual DOM used by React to efficiently update the UI. React compares the Virtual DOM with the actual DOM (using a process called "diffing") and only updates the parts that have changed.

// What is Memoization?

// What is Reconciliation in React?
Reconciliation is the process by which React updates the DOM when a component's state or props change. React compares the new Virtual DOM with the previous one and only updates the changed elements in the actual DOM.

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