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The Go Workshop

You're reading from   The Go Workshop Learn to write clean, efficient code and build high-performance applications with Go

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Product type Paperback
Published in Dec 2019
Publisher Packt
ISBN-13 9781838647940
Length 824 pages
Edition 1st Edition
Languages
Tools
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Authors (6):
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Sam Hennessy Sam Hennessy
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Sam Hennessy
Andrew Hayes Andrew Hayes
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Andrew Hayes
Gobin Sougrakpam Gobin Sougrakpam
Author Profile Icon Gobin Sougrakpam
Gobin Sougrakpam
Jeremy Leasor Jeremy Leasor
Author Profile Icon Jeremy Leasor
Jeremy Leasor
Delio D'Anna Delio D'Anna
Author Profile Icon Delio D'Anna
Delio D'Anna
Dániel Szabó Dániel Szabó
Author Profile Icon Dániel Szabó
Dániel Szabó
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Toc

Table of Contents (21) Chapters Close

Preface 1. Variables and Operators FREE CHAPTER 2. Logic and Loops 3. Core Types 4. Complex Types 5. Functions 6. Errors 7. Interfaces 8. Packages 9. Basic Debugging 10. About Time 11. Encoding and Decoding (JSON) 12. Files and Systems 13. SQL and Databases 14. Using the Go HTTP Client 15. HTTP Servers 16. Concurrent Work 17. Using Go Tools 18. Security 19. Special Features Appendix

Panic

Several languages use exceptions for handling errors. However, Go does not use exceptions, it uses something called panic. Panic is a built-in function that causes the program to crash. It stops the normal execution of the Goroutine.

In Go, panic is not the norm, unlike other languages where an exception is a norm. A panic signal indicates something abnormal that is occurring within your code. Usually, when panic is initiated by runtime or the developer, it is to protect the integrity of the program.

Errors and panics differ in their purposes and how they are handled by the Go runtime. An error in Go indicates that something unexpected occurred, but it will not adversely impact the integrity of the program. Go expects that the developer will handle the error properly. The function or other programs will not typically crash if you do not handle the error. However, panics differ in this regard. When panic occurs, it will ultimately crash the system unless there are handlers...

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