On Demand Loading
On Demand Loading is a software optimization technique where resources (such as code, data, or assets) are loaded only when they are needed during runtime, rather than upfront. This approach reduces initial load times, conserves memory, and improves application performance by deferring the loading of non-critical components. It is commonly implemented through mechanisms like lazy loading, code splitting, or dynamic imports in web and mobile applications.
Developers should use On Demand Loading when building applications with large codebases, heavy assets, or complex features to enhance user experience by minimizing initial load delays. It is particularly valuable in web development for improving page speed metrics (e.g., Core Web Vitals) and in mobile apps to reduce memory footprint and data usage. Specific use cases include loading images as users scroll, splitting JavaScript bundles in single-page applications, or fetching data only when a specific module is accessed.