Defer Functions In Golang: Everything You Need To Know

The defer keyword in Go is a powerful feature you must know! Structs are also really common in Golang and that's why I highly recommend watching this video here as well: https://youtu.be/c8H0w4yBL10

📝 Description

In this video, we dive deep into one of the most useful and powerful features in Golang—the defer keyword. This concept allows for deferred processing that executes a function just before it returns, making it especially useful for cleanup operations or handling panics. We'll look into three different use-cases: reading a file, logging the execution time of a function, and handling and recovering from panics. Each example will provide you with practical knowledge on how to use the defer keyword effectively in your Golang code.

⏳ Timestamps:

00:00 - Definition of defer

01:37 - 1. Use case - Reading a file

05:55 - 2. Use case - Benchmarking a function

09:39 - 3. Use case - Recover from panics

11:52 - Outro

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If you are new to this channel: Hey 👋 my name is Flo and I am a professional software engineer with a passion for coding in Golang, TypeScript, JavaScript, and Rust. This channel is where I share that passion and dive into the exciting world of software engineering. Plus, I love using Emojis and paper-based animations (so have a look for that, if you want to find my videos).

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📝 Copyright Notice

The original Go Gopher version is originally designed by Renée French (Source: https://go.dev/blog/gopher License details: https://creativecommons.org/licenses/by/4.0/). The gopher used in the video and thumbnail is inspired by this author.

#golang #go #defer