Using Socket for real-time communication in Vue is a common requirement, but sometimes we encounter a problem: Why do we need to refresh when using Socket? This article will answer this question in detail and provide corresponding source code examples.
First, let us understand what Socket is. Socket is a network programming tool that provides a way to conduct real-time two-way communication between a client and a server. In web development, Socket is usually used to implement real-time updates, chat applications, multiplayer games and other scenarios.
When using Socket in Vue, you usually use a third-party library, such as Socket.io. Socket.io is a WebSocket-based library that provides a simple and easy-to-use way to achieve real-time communication. When using Socket.io, we need to create a Socket instance in the Vue component and send and receive messages through it.
Now let's answer the question of why you need to refresh when using Socket. In Vue, component lifecycle hook functions are very important. They allow us to perform specific operations at different stages of the component. In some cases, we need to reconnect the Socket when the component refreshes, because component refresh will cause the Socket instance to be destroyed and re-created.
Let's illustrate this with a simple example. Suppose we have a Vue component of a chat application that uses Socket.io for real-time communication. First, we need to create a Socket instance in the component's create hook function:
import io from 'socket.io-client';
export