DEV Community: narender2031

OS.Ninja

narender2031 — Mon, 19 Jan 2026 10:29:29 +0000

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How to use sockets in react-native [No Expo]

narender2031 — Sun, 05 May 2024 06:42:01 +0000

I am building an Application that need to use the sockets, i have gone through multiple docs and come up with the following packages.

Can we use the following packages?

yarn add socket.io-client
yarn add @react-native-community/socket.io

Please suggest me something that i can use

Hoisting in JavaScript

narender2031 — Mon, 12 Jul 2021 17:08:52 +0000

When a JavaScript function executes it creates a global execution context. There are two-phase in the global execution context.

Creation
Code execution

In the Creation phase, javaScript allocates the memory to the variables and functions. For the variables, it allocates the placeholder value called undefined. In the case of the function, it saves the function to the memory.

So When you called the function before the define the function it works. But in the case of the Variables, it returns the undefined.