Go Foundations·Clarity, then concurrency

Syntax, packages and tools

Go favours a small grammar and one obvious formatting style.

Beginner 12 min read Lesson 6 of 300 Challenge included

What you will be able to do

Run gofmt on every file; there is no style negotiation.
Keep package names short and lowercase.
Use := inside functions and var at package scope.

In plain English

Go programs are made of packages. Exported identifiers start with a capital letter. gofmt removes formatting debates; go test runs tests beside the code. Compile errors are part of the feedback loop.

main.goGo

package main

import "fmt"

type Course struct {
    Slug    string
    Lessons int
}

func main() {
    course := Course{Slug: "go", Lessons: 5}
    fmt.Printf("%s has %d lessons\n", course.Slug, course.Lessons)
}

Your turn

Define a lesson

Easy

Create a Lesson struct with Title and Minutes, then print both fields.

GO · starter

type Lesson struct {
}

Check your understanding before moving on.

Knowledge checkQuestion 1

What does an exported Go identifier start with?

Select an answer to continue

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Lesson 6 of 300 · 0% of course