Go Index Page 1

Golang: convert rune to int

Convert a rune to an int using int(rune - '0'). Read our article for more information

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go build: runtime.main_main·f: function main is undeclared in the main package

When you get the error "runtime.main_main·f: function main is undeclared in the main package" this means that there is a file in your project which is missing the "func main". Check here for more details.

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How to update the Go version

Steps to update go lang to the latest version. Remove your current go and then Go to the [downloads](https://golang.org/dl/) page and download the binary release. finally install it following the steps in this guide.

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Understanding the go scheduler

The scheduler tries to use a small number of kernel threads to support high concurrency. It will leverage parallelism to scale to many cores. In this tutorial, we explain with some details how the go scheduler works to distribute goroutines over kernel threads.

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Introduction to asynchronous networking programming with go

With go you don’t have threads, you have goroutines which are very cheap in terms of stack and scheduling. Go has a scheduler which works like an event loop, but it allows the developer to forget about events, queues, saving state, etc. Check our tutorial to learn to go networking programming.

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Error while installing bettercap: pcap.h: No such file or directory

When you do: go get github.com/bettercap/bettercap and get the error: fatal error: pcap.h: No such file or directory try to execute ->

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Install go in raspberrypi steps

Follow this steps to install go on the raspberry pi. We don't use apt to install go and instead we download the latest version from https://golang.org.

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Go: How to write/read data to a CSV file?

Learn how to write/read data to a csv file using the go lenguage

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Go: How to search and replace text using golang?

In this tutorial we are going to explain how to use string.Replace function and Replacer class. We are going to show you some example code.

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Go project skeleton

In this tutorial we will generate a go project skeleton or directory structure. As an example the command will send a message to slack.