TarballFiber.tar.gz

raceFlag

server side

user input

server side-copy

serverJob

Go (also known as Golang) is one of the most popular languages today and is a key part of many enterprise tech stacks. Because Go's memory management architecture makes concurrency easier, many developers prefer it over traditional languages.

In this course, you will learn the core constructs and techniques of Go as well as advanced concepts of the language. In particular, you’ll learn how to program efficiently by becoming aware of the pitfalls and patterns that are commonly encountered in Go and by building your own applications.

Once you’ve completed this course, you will be able to write concurrent programs and improve the performance of existing ones, thus creating a more robust experience for everyone. Concurrency is in high demand today since it enables developers to reduce execution time of applications significantly, and Golang provides a very rich support for achieving this.

Concurrency in Go

A medium for sending values between goroutines

A lightweight thread for concurrent programming

The compiler will print `"I am a function"`.

The compiler will not print anything on the console.

What will be the output of the following code snippet?

```go
package main

import (
   "fmt"
)

func main(){
    go func(){
        fmt.Println("I am a function")
    }
}
```

<p>What will be the output of the following code snippet?</p>
<pre><code class="language-go">package main

import (
   &quot;fmt&quot;
)

func main(){
    go func(){
        fmt.Println(&quot;I am a function&quot;)
    }
}
</code></pre>


The snippet will throw a compile-time error.

The `func4` will return a string "Hi, I am an anonymous function!!". 

The value of the `x1` variable is "an anonymous function!!".

The value of the `x2` variable is "I am an anonymous function!!". 

The compiler will print "Hi, I am an anonymous function!!". 

(Select all that apply.) Select all the incorrect statements about the following code snippet.

```go
package main

import (
	"fmt"
)

func main() {
	func1 := func(v string) string {
		return fmt.Sprintf("%s", v+"function!!")
	}

	func2 := func(v string, g func(v string) string) string {
		x1 := v + g("an anonymous ")
		return x1
	}

	func3 := func(v string, g func(v string, g func(v string) string) string) string {
		x2 := v + g("am ", func1)
		return x2
	}

	func4 := func(v string, g func(v string, f func(v string, g func(v string) string) string) string) string {
		x3 := v + g("I ", func2)
		return x3
	}

	func4("Hi, ", func3)
}
```


<p>(Select all that apply.) Select all the incorrect statements about the following code snippet.</p>
<pre><code class="language-go">package main

import (
	&quot;fmt&quot;
)

func main() {
	func1 := func(v string) string {
		return fmt.Sprintf(&quot;%s&quot;, v+&quot;function!!&quot;)
	}

	func2 := func(v string, g func(v string) string) string {
		x1 := v + g(&quot;an anonymous &quot;)
		return x1
	}

	func3 := func(v string, g func(v string, g func(v string) string) string) string {
		x2 := v + g(&quot;am &quot;, func1)
		return x2
	}

	func4 := func(v string, g func(v string, f func(v string, g func(v string) string) string) string) string {
		x3 := v + g(&quot;I &quot;, func2)
		return x3
	}

	func4(&quot;Hi, &quot;, func3)
}
</code></pre>


Quiz yourself on the basic concepts of a goroutine.


Quiz

Quiz yourself on the basic concepts of a goroutine.

Introduction to Concurrency

General Concepts

Sync

Goroutines

Channels

Implementing Concurrency Patterns

Conclusion

Quiz