Node.js combined with Express.js remains a golden combination for building efficient web applications.Express introduces the concept of a 'view engine' for dynamic HTML content delivery.EJS (Embedded JavaScript) and JSX (JavaScript XML) are compared for server-side rendering in Express.js with TypeScript.EJS is favored for its simplicity, while JSX, popular due to React, offers component-based UI building.EJS syntax includes tags like <%= ... %> for output and <% ... %> for JavaScript execution.JSX, a syntax extension for JavaScript, allows HTML-like structures in code and is not limited to React.Advantages of EJS include simplicity, flexibility, and a mature ecosystem, but it lacks strong typing and componentization.JSX offers type safety, excellent componentization, robustness, and an improved developer experience.Choosing between EJS and JSX depends on project complexity, team familiarity, type safety needs, and component reusability.Deployment to cloud platforms like Leapcell involves code preparation, building, platform configuration, and deployment steps.