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Event delegation in Lightning Web Components (LWC) involves using a single event listener on a parent element to manage events for its child elements. This approach simplifies code, improves performance, and enhances maintainability, especially in dynamic UIs.

### Short Description Throttling in Lightning Web Components (LWC) is a technique to limit how often a function executes, especially for frequently triggered events like scroll or resize. This approach improves application performance by reducing redundant function calls and managing system resources more efficiently.

The introduction of the lightning/refresh module alongside the RefreshView API marks a significant advancement for both LWC and Aura frameworks. This duo facilitates a more refined control over the refresh scope, enabling pinpointed updates within specific segments of the component tree, thus eliminating the need for a full-scale component refresh.

Lightning Web Components (LWC) is a modern JavaScript framework for building high-performance, reusable web components on the Salesforce platform. It uses web standards, modern JavaScript (ES6), and features like Shadow DOM and simplified data access with decorators. LWC is open-source and supports multiple API versions, providing a consistent and efficient developer experience.

Throttling is a technique used to limit the rate at which a function executes. It ensures that the function is called only at specified intervals, preventing it from being invoked too frequently. This helps improve performance and manage system resources efficiently.