Golang - Code Dodle

How to Use TeeReader in Golang

Hank Cheah — Sat, 06 May 2023 02:08:07 +0000

TeeReader is reader that writes to a writer, w, as you read from reader, r. It is useful for situations where you need to read a reader multiple times. As you know, readers such as bytes.Buffer can be read one time only. This is the official io.TeeReader definition:- func TeeReader(r Reader, w Writer) Reader This is...

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How to Create a Reverse Proxy using Golang

Hank Cheah — Wed, 09 Nov 2022 08:47:24 +0000

Go’s httputil package makes it really easy to create a reverse proxy. In this article, I’ll show you how to create a simple reverse proxy and ways you can extend and develop more complex features using it as the base. Simple Reverse Proxy using httputil The simplest version of Go reverse proxy requires just a...

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How to Convert String to Slice of Characters in Go

Hank Cheah — Wed, 02 Nov 2022 10:07:11 +0000

In this article, I’ll share with you a few ways to break a string into characters in Go: Using strings.Split() Using rune() – this is my preferred approach Using byte() 1. Break String into Character Substrings using strings.Split() Given a string and a delimiter, strings.Split() slices the string into a slice of substrings. When the...

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How to Compare Strings in Go

Hank Cheah — Tue, 01 Nov 2022 12:44:56 +0000

There are two ways to compare strings lexicographically in Go:- 1. Use built-in comparison operators (officially recommended – more details below) 2. Use strings.Compare() Compare Two Strings using Comparision Operators In addition to numbers, Go comparison operators such as ==, >, >=, <, <= also supports strings. This is the officially recommended way to do...

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4 Ways to Split String into Subtrings in Go

Hank Cheah — Thu, 27 Oct 2022 12:40:11 +0000

In this tutorial, I’ll share with you four ways to split a string into a slice of substrings in Go. We’ll be using these 4 functions from Go’s strings package for the slicing task:- func Split(s, sep string) []string func SplitN(s, sep string, n int) []string func SplitAfter(s, sep string) []string func SplitAfterN(s, sep string,...

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