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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

Parameters

Parameters define what arguments can be passed to our function. Functions can have zero or more parameters. Even though Go allows us to define multiple parameters, we should take care not to have a huge parameter list; that would make the code harder to read. It also may be an indication that the function is doing more than one specific task. If that is the case, we should refactor the function. Take, for example, the following code snippet:

func calculateSalary(lastName string, firstName string, age int, state string, country string, hoursWorked int, hourlyRate, isEmployee bool) {
// code
}

The preceding code is an example of a function whose parameter list is bloated. The parameter list should pertain only to the single responsibility of the function. We should only define the parameters that are needed to solve the specific problem that the function is built for.

Parameters are the input types that our function will use to perform its task. Function parameters...

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