Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Go Recipes for Developers
  • Table Of Contents Toc
  • Feedback & Rating feedback
Go Recipes for Developers

Go Recipes for Developers

By : Burak Serdar
close
close
Go Recipes for Developers

Go Recipes for Developers

By: Burak Serdar

Overview of this book

With its simple syntax and sensible conventions, Go has emerged as the language of choice for developers in network programming, web services, data processing, and other settings. This practical guide helps engineers leverage Go through up-to-date recipes that solve common problems in day-to-day programming. Drawing from three decades of distributed systems engineering and technical leadership at companies like Red Hat, Burak Serdar brings battle-tested expertise in building robust, scalable applications. He starts by covering basics of code structure, describing different approaches to organizing packages for different types of projects. You’ll discover practical solutions to engineering challenges in network programming, dealing with processes, databases, data processing pipelines, and testing. Each chapter provides working solutions and production-ready code snippets that you can seamlessly incorporate into your programs while working in sequential and concurrent settings. The solutions leverage the more recent additions to the Go language, such as generics and structured logging. Most of the examples are developed using the Go standard library without any third-party packages. By the end of this book, you’ll have worked through a collection of proven recipes that will equip you accelerate your Go development journey.
Table of Contents (20 chapters)
close
close

Creating a slice from an array

Many functions will accept slices and not arrays. If you have an array of values and need to pass it to a function that wants a slice, you need to create a slice from an array. This is easy and efficient. Creating a slice from an array is a constant-time operation.

How to do it...

Use the [:] notation to create a slice from the array. The slice will have the array as its underlying storage:

arr := [...]int{0, 1, 2, 3, 4, 5}
slice := arr[:] // slice has all elements of arr
slice[2]=10
// Here, arr = [...]int{0,1,10,3, 4,5}
// len(slice) = 6
// cap(slice) = 6

You can create a slice pointing to a section of the array:

slice2 := arr[1:3]
// Here, slice2 = {1,10}
// len(slice2) = 2
// cap(slice2) = 5

You can slice an existing slice. The bounds of the slicing operation are determined by the capacity of the original slice:

slice3 := slice2[0:4]
// len(slice3)=4
// cap(slice3)=5
// slice3 = {1,10,3,4}

How it works...

A slice is a data...

Visually different images
CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
Go Recipes for Developers
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist download Download options font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon