Coding with golang

Nov 1, 20210 likes459 views

HannahMoss14

Join us to learn the basics of Go, a Google created language with strong concurrent features, and build a Discord bot!

Coding with Golang
October 21st, 6-7PM
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What is a GDSC?
Google Developer Student Clubs

We’re open to all majors!
If you would like to join GDSC at
UCF, it’s easy! The linked slide deck
has all of our socials, calendar,
mailing list, a step-by-step guide on
joining Bevy (our Google-created
RSVP site), and more!
tinyurl.com/gdsc-ucf-join-in
Want to Join GDSC?

https://linktr.ee/knighthacks
linktr.ee/knighthacks
Knight Hacks

Meet today’s speakers
Hannah Moss
GDSC UCF - Lead/President
Alice Yu
GDSC UCF - VP/Co-Lead
Andrei Gulapa
GDSC UCF - Marketing Lead

What is Golang/ Go?
● Golang or..Go?
○ go.org was not available → golang.org!
○ “Golang” == “Go” (but the actual language is called
Go!)
● Created by Google in 2007
● Open source programming language

● Easy to learn! Syntax is clean and simple
● Fast and secure
● Garbage collection
● Easy concurrency model
Pros

● No generics
● Poor library support
● Time-consuming to write
Cons

Hello World!
- Packages
- Imports
- Functions / main
- All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website)
Syntax -

Let’s do some math!
- Imports
- Exports
- All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website)
Syntax -

Let’s do some math!
- Functions
-
Syntax -

Let’s do some math!
- Shortened function parameters
-
Syntax -

Swappy swap
- Multiple return types
- All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website)
Syntax -

Practice time!
- Let’s code up a split number function!
- Split the number 17 into 2 numbers
-
Syntax -

Practice time!
- What is the return type?
- Shorten this function’s return
parameters
-
Syntax -

Let’s talk about variables!
- Declaring
- All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website)
Syntax -

Let’s talk about variables!
- Initializing
- If we wanted to initialize var i, j to 1 and 2,
what would it look like?
- All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website)
Syntax -

Let’s talk about variables!
- Short var declarations
- Used frequently
- All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website)
Syntax -

Loops
- For loops
- What does a typical for loop
parameter look like for int i for
(i < 10) comparisons?
- What if we used a shortened var
initialization to initialize i? What
would it look like?
Syntax -

Loops
- For loops
- All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website)
Syntax -

Loops
- While loop
- Basically a shorted for loop
- All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website)
Syntax -

If statements
You can shorten if statements that
have preconditions
Syntax -

How can you replicate the Sqrt
function?
You’ll need to use a for loop
and declare extra variables!
Template:
Square roots
Time for your own
practice! Brain teaser
https://tour.golang.org/ﬂowcontrol/8

Discord Setup Steps - Overview
1. Set Up Discord Server
2. Create a new Discord Application -
https://discord.com/developers/applications
a. Create a new Discord Bot
3. Connect the Bot to your Server
Let’s Dive in!!
Let’s Build A Discord Bot

Repl.it Setup Steps - Overview
1. Create a new Repl within Repl.it
https://replit.com/
2. Import discordgo library : github.com/bwmarrin/discordgo
3. Add Discord bot’s token to repl
Let’s Dive in!!
Let’s Build A Discord Bot

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Coding with golang

1. Coding with Golang October 21st, 6-7PM Sign in

2. What is a GDSC? Google Developer Student Clubs

3. We’re open to all majors! If you would like to join GDSC at UCF, it’s easy! The linked slide deck has all of our socials, calendar, mailing list, a step-by-step guide on joining Bevy (our Google-created RSVP site), and more! tinyurl.com/gdsc-ucf-join-in Want to Join GDSC?

5. https://linktr.ee/knighthacks linktr.ee/knighthacks Knight Hacks

6. Meet today’s speakers Hannah Moss GDSC UCF - Lead/President Alice Yu GDSC UCF - VP/Co-Lead Andrei Gulapa GDSC UCF - Marketing Lead

8. What is Golang/ Go? ● Golang or..Go? ○ go.org was not available → golang.org! ○ “Golang” == “Go” (but the actual language is called Go!) ● Created by Google in 2007 ● Open source programming language

9. Uses

10. Companies using Go

11. ● Easy to learn! Syntax is clean and simple ● Fast and secure ● Garbage collection ● Easy concurrency model Pros

12. ● No generics ● Poor library support ● Time-consuming to write Cons

13. Hello World! - Packages - Imports - Functions / main - All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website) Syntax -

14. Let’s do some math! - Imports - Exports - All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website) Syntax -

15. Let’s do some math! - Functions - Syntax -

16. Let’s do some math! - Shortened function parameters - Syntax -

17. Swappy swap - Multiple return types - All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website) Syntax -

18. Practice time! - Let’s code up a split number function! - Split the number 17 into 2 numbers - Syntax -

19. Practice time! - What is the return type? - Shorten this function’s return parameters - Syntax -

20. Practice time! - What is the return type? - Shorten this function’s return parameters - Syntax -

21. Let’s talk about variables! - Declaring - All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website) Syntax -

22. Let’s talk about variables! - Initializing - If we wanted to initialize var i, j to 1 and 2, what would it look like? - All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website) Syntax -

23. Let’s talk about variables! - Initializing - If we wanted to initialize var i, j to 1 and 2, what would it look like? - All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website) Syntax -

24. Let’s talk about variables! - Short var declarations - Used frequently - All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website) Syntax -

25. Loops - For loops - What does a typical for loop parameter look like for int i for (i < 10) comparisons? - What if we used a shortened var initialization to initialize i? What would it look like? Syntax -

26. Loops - For loops - All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website) Syntax -

27. Loops - While loop - Basically a shorted for loop - All material is pulled from https://tour.golang.org/welcome/1 (Oﬃcial Go website) Syntax -

28. If statements Syntax -

29. If statements You can shorten if statements that have preconditions Syntax -

30. How can you replicate the Sqrt function? You’ll need to use a for loop and declare extra variables! Template: Square roots Time for your own practice! Brain teaser https://tour.golang.org/ﬂowcontrol/8

31. Discord Setup Steps - Overview 1. Set Up Discord Server 2. Create a new Discord Application - https://discord.com/developers/applications a. Create a new Discord Bot 3. Connect the Bot to your Server Let’s Dive in!! Let’s Build A Discord Bot

32. Repl.it Setup Steps - Overview 1. Create a new Repl within Repl.it https://replit.com/ 2. Import discordgo library : github.com/bwmarrin/discordgo 3. Add Discord bot’s token to repl Let’s Dive in!! Let’s Build A Discord Bot

33. Coding Time! Let’s Build A Discord Bot

34. Coding with Golang Sign in Thank you!

Coding with golang

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