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React and SPFx Interview Questions with Scenarios and Code Examples

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Introduction React and SharePoint Framework (SPFx) are popular technologies used in modern web development, especially for building user interfaces and custom web parts in SharePoint. Preparing for interviews involving these technologies requires a solid understanding of core concepts, practical scenarios, and coding proficiency. In this blog, we’ll cover essential interview questions, different scenarios, and code examples to help you ace your React and SPFx interviews. Section 1: React Interview Questions 1. What is the Virtual DOM, and how does it improve performance in React? Scenario: Imagine you’re building a dashboard with multiple widgets that update frequently. How would React's Virtual DOM help optimize performance in this case? Explanation: React uses a Virtual DOM, an in-memory representation of the real DOM. When the state of an element changes, React updates the Virtual DOM first. It then calculates the difference (diffing) between the previous and current states of
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Burners and Earners: The Dance of Value and Vision

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In the great dance of life, we often find ourselves playing roles we scarcely recognize. Some of us are Earners , toiling under the weight of responsibility, while others become Burners , consuming what is offered without a thought for tomorrow. This piece is for those who wander without a dream, spending with abandon, unaware of the price paid by those who came before them. The Tale of the Earners The Earners are the silent sentinels of our existence. They rise before the sun, their hearts heavy with the hopes of those they care for. They work tirelessly, not just for themselves, but for the futures they wish to build. They understand the value of every coin earned, each drop of sweat a testament to their commitment. They are the ones who plant seeds in barren lands, hoping for a harvest they may never see. Their sacrifices are often unseen, their labors uncelebrated. But it is they who ensure that the world keeps spinning, that dreams have a foundation upon which to grow. For the Ear
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