go.tar.gz

unicode_norm

equality_test

equality_bench

memory_first

imports_pkg

exercise

SPA test

Run packages

Go is a popular language known for its simplicity. For developers who lack a deep knowledge of its features, it's a great time to pick up the Go language. The differences between Go and other popular programming languages can lead to hours of Google for the newer software engineer. Mastering these surprising, sometimes delightful, sometimes frustrating features can be the difference between time spent on debugging and time spent on deployment.

In this course, you will go deeper than an introductory book to learn the various features that make Go unique. You’ll learn how to protect against the bugs caused by poorly defined variables (and variable shadowing), how Go treats slicers and arrays similarly, and how to work with multidimensional datasets. You’ll also dive into memory handling, strings, loops, and goroutines.

This course will be most useful if you already have a basic understanding of Go and its syntax. By the end of the course, you’ll move from Go-familiar to Go-expert.

Exploring and Mastering the Full Go Featureset

What is the output of the following code?
```Go
package main

import "fmt"

func main() {
	for v := range []string{"one", "two", "three"} {
		fmt.Println(v)
	}
}
```

What is the output of the following code?
<pre><code class="language-Go">package main

import &quot;fmt&quot;

func main() {
	for v := range []string{&quot;one&quot;, &quot;two&quot;, &quot;three&quot;} {
		fmt.Println(v)
	}
}
</code></pre>

What is the output of the following code?
```Go
package main

import "fmt"

func main() {
	sum := 0
	for k, v := range []int{10, 20, 30} {
		sum += k * v
	}
	fmt.Println(sum)
}
```

What is the output of the following code?
<pre><code class="language-Go">package main

import &quot;fmt&quot;

func main() {
	sum := 0
	for k, v := range []int{10, 20, 30} {
		sum += k * v
	}
	fmt.Println(sum)
}
</code></pre>

What is the output of the following code?
```Go
package main

import (
	"fmt"
	"time"
)

func main() {
	sum := 0
	for k, v := range []int{10, 20, 30} {
		go func() {
			sum += k * v
		}()
	}
	time.Sleep(time.Millisecond)
	fmt.Println(sum)
}
```

What is the output of the following code?
<pre><code class="language-Go">package main

import (
	&quot;fmt&quot;
	&quot;time&quot;
)

func main() {
	sum := 0
	for k, v := range []int{10, 20, 30} {
		go func() {
			sum += k * v
		}()
	}
	time.Sleep(time.Millisecond)
	fmt.Println(sum)
}
</code></pre>

Will the following get stuck in an infinite loop?
```Go
package main

func main() {
loop:
	switch {
	case true:
		for {
			break loop
		}
	}
}
```

Will the following get stuck in an infinite loop?
<pre><code class="language-Go">package main

func main() {
loop:
	switch {
	case true:
		for {
			break loop
		}
	}
}
</code></pre>

Will the following get stuck in an infinite loop?
```Go
package main

func main() {
	switch {
	case true:
	loop:
		for {
			continue loop
		}
	}
}
```

Will the following get stuck in an infinite loop?
<pre><code class="language-Go">package main

func main() {
	switch {
	case true:
	loop:
		for {
			continue loop
		}
	}
}
</code></pre>

What is the output of the following code?
```Go
package main

import (
	"fmt"
)

func main() {
	for i := 0; i < 4; i++ {
		switch i {
		case 0:
			fmt.Print("0")
			fallthrough
		case 1:
			fmt.Print("1")
			break
		case 2:
			fmt.Print("2")
		case 3:
			fmt.Print("3")
		}
	}
}
```

What is the output of the following code?
<pre><code class="language-Go">package main

import (
	&quot;fmt&quot;
)

func main() {
	for i := 0; i &lt; 4; i++ {
		switch i {
		case 0:
			fmt.Print(&quot;0&quot;)
			fallthrough
		case 1:
			fmt.Print(&quot;1&quot;)
			break
		case 2:
			fmt.Print(&quot;2&quot;)
		case 3:
			fmt.Print(&quot;3&quot;)
		}
	}
}
</code></pre>

Test your understanding of control structures in Go.

Basics of Go

Data Types

Collection Types

Control Structures

Functions, Goroutines and Interfaces

Inheritance and Equality

Memory and Time

Wrap Up!

Quiz: Control Structures