# Core operations and patterns — WebSockets & Server-Sent Events

Source: https://www.geekswithgeeks.com/en/realtime-web/realtime-web-07

> Apply core concepts 2 in WebSockets & Server-Sent Events.

## Understand Core operations and patterns

In **WebSockets & Server-Sent Events**, connect the problem, constraints, and measurable outcome before choosing an approach.

## Practise deliberately

Use a small example and verify one result before expanding it.

## A useful comparison

This is like a route plan: every step should lead to a checked destination.

Check your reasoning.

**Quiz:** What comes before choosing an approach?

- [x] A clear goal and constraints.
- [ ] An unverified copy.
- [ ] No measurement.

*Answer:* A clear goal and constraints.. Evidence makes decisions reviewable.