Functions, Methods, and Interfaces in Go

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Functions, Methods, and Interfaces in Go

This course is part of Programming with Google Go Specialization

Instructor: Ian Harris

30,515 already enrolled

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4 modules

Gain insight into a topic and learn the fundamentals.

1,016 reviews

Intermediate level

Some related experience required

Flexible schedule

1 week at 10 hours a week

Learn at your own pace

84%

Most learners liked this course

4 modules

Gain insight into a topic and learn the fundamentals.

1,016 reviews

Intermediate level

Some related experience required

Flexible schedule

1 week at 10 hours a week

Learn at your own pace

84%

Most learners liked this course

Skills you'll gain

Tools you'll learn

Go (Programming Language)

Details to know

Shareable certificate

Add to your LinkedIn profile

Assessments

4 assignments¹

AI Graded see disclaimer

Taught in English

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This course is part of the Programming with Google Go Specialization

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There are 4 modules in this course

Continue your exploration of the Go programming language as you learn about functions, methods, and interfaces. Topics include the implementation of functions, function types, object-orientation in Go, methods, and class instantiation. As with the first course in this series, you’ll have an opportunity to create your own Go applications so you can practice what you’re learning. The first module introduces the concept of functions and shows you how to use them to manipulate data programmatically. Once again, the treatment of the topic begins at a fairly rudimentary level to ensure everyone is starting from the same point in terms of basic concepts.

What's included

7 videos8 readings1 assignment1 peer review

7 videosTotal 55 minutes

M1.1.1 - Why Use Functions?10 minutes
M1.1.2 - Function Parameters and Return Values7 minutes
M1.1.3 - Call by Value, Reference8 minutes
M1.1.4 - Passing Arrays and Slices6 minutes
M1.2.1 - Well-Written Functions8 minutes
M1.2.2 - Guidelines for Functions11 minutes
M1.2.3 - Function Guidelines7 minutes

8 readingsTotal 15 minutes

STOP - Read This First!1 minute
M1.1.1 - Why Use Functions?2 minutes
M1.1.2 - Function Parameters and Return Values2 minutes
M1.1.3 - Call by Value, Reference2 minutes
M1.1.4 - Passing Arrays and Slices2 minutes
M1.2.1 - Well-Written Functions2 minutes
M1.2.2 - Guidelines for Functions2 minutes
M1.2.3 - Function Guidelines2 minutes

1 assignmentTotal 10 minutes

Module 1 Quiz10 minutes

1 peer reviewTotal 120 minutes

Module 1 Activity: Bubble Sort Program120 minutes

This second module continues to explore the use of functions in Go. You’ll continue learning about the capabilities and features of functions, and write a routine that solves a practical physics problem.

What's included

3 videos3 readings1 assignment1 peer review

3 videosTotal 26 minutes

M2.1.1 - First-Class Values9 minutes
M2.1.2 - Returning Functions11 minutes
M2.2.2 - Variadic and Deferred7 minutes

3 readingsTotal 6 minutes

M2.1.1 - First Class Values2 minutes
M2.1.2 - Returning Functions2 minutes
M2.2.1 - Variadic and Deferred2 minutes

1 assignmentTotal 14 minutes

Module 2 Quiz14 minutes

1 peer reviewTotal 120 minutes

Module 2 Activity120 minutes

Functions in Go have many useful and powerful capabilities, which you’ll explore in this module. At the end, you’ll develop a Go routine that takes full advantage of Go’s object orientation.

What's included

6 videos6 readings1 assignment1 peer review

6 videosTotal 28 minutes

M3.1.1 - Classes and Encapsulation6 minutes
M3.1.2 - Support for Classes (1)7 minutes
M3.1.3 - Support for Classes (2)3 minutes
M3.2.1 - Encapsulation6 minutes
M3.2.2 - Point Receivers4 minutes
M3.2.3 - Point Receivers, Referencing, Dereferencing3 minutes

6 readingsTotal 12 minutes

M3.1.1 - Classes and Encapsulation2 minutes
M3.1.2 - Support for Classes (1)2 minutes
M3.1.3 - Support for Classes (2)2 minutes
M3.2.1 - Encapsulation2 minutes
M3.2.2 - Pointer Receivers2 minutes
M3.2.3 - Pointer Receivers, Referencing, Dereferencing2 minutes

1 assignmentTotal 14 minutes

Module 3 Quiz14 minutes

1 peer reviewTotal 60 minutes

Module 3 Activity60 minutes

This last module rounds out the course by introducing several new concepts including interfaces and polymorphism. You’ll finish the module – and course – by creating a Go routine that creates instances of a class and allows you to query its properties.

What's included

6 videos6 readings1 assignment1 peer review

6 videosTotal 40 minutes

M4.1.1 - Polymorphism6 minutes
M4.1.2 - Interfaces6 minutes
M4.1.3 - Interface vs. Concrete Types12 minutes
M4.2.1 - Using Interfaces7 minutes
M4.2.2 - Type Assertions7 minutes
M4.2.3 - Error Handling2 minutes

6 readingsTotal 12 minutes

M4.1.1 - Polymorphism2 minutes
M4.1.2 - Interfaces2 minutes
M4.1.3 - Interface vs. Concrete Types2 minutes
M4.2.1 - Using Interfaces2 minutes
M4.2.2 - Type Assertions2 minutes
M4.2.3 - Error Handling2 minutes

1 assignmentTotal 14 minutes

Module 4 Quiz14 minutes

1 peer reviewTotal 120 minutes

Module 4 Activity120 minutes

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Instructor

Instructor ratings

(184 ratings)

Ian Harris

University of California, Irvine

9 Courses652,576 learners

Offered by

University of California, Irvine

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Reviewed on Sep 12, 2025

Not a bad course, not a course for beginners in programming, so the basics are skipped, and more is told about the features of Go. Although, in my opinion, some points could have been shortened.

Reviewed on Nov 15, 2022

One of the best if not the best course on Golang that I have taken. For a long time I struggled with some very fundamental concepts in Go, but today, I am confident of my knowledge in it.

Reviewed on Nov 4, 2020

This second course was better than the initial one. The content was more interesting, and the exercises more challenging. I enjoyed the course and I believe it was worth my time.

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