DEV Community: Hugoonreplit

How to .go : For

Hugoonreplit — Fri, 24 Feb 2023 07:06:10 +0000

Introduction

Hey people,

have you ever heard about Go? Well, let me tell you that Go is amazing! If you don't know a lot of things about Go, here are some bullet points :

statically typed, compiled high-level programming language
Designed at Google
syntactically similar to C, but with memory safety, garbage collection, structural typing, and CSP-style concurrency
It has a mascot which is really cool
It's very very fast

Go on Replit

Replit has hundreds of programming languages templates, and when I say hundreds I mean it. There are some Go related templates, for example these :

Go
Go HTTP Template
Beego
Discordgo

These are some popular templates, I actually made Beego! Starting using Go in Replit is very simple, if you don't have account, follow these steps :

Go to https://join.replit.com/Hugo (it's my code 😄)
Fill in all the details
Once you've filled all the details verify your accounts by email
Once your account is verified click on the create button and search Go
Select Go, put a title to your repl and click on the Create Repl button

Once you've clicked on the Create Repl button you will enter to the workspace, where you will be able to start coding!

For

If you've been coding for sometime, I'm sure that you might have come across the for loops in Python. This is a code example using the for loops :

languages = ["go", "css", "c++"]
for x in languages:
  print(x)

For loops are very simple in Python, but I didn't find them so simple in Go! Here is a simple code example of a For loop I did with Go :

package main

import (
    "fmt"
)

func main() {
  i := 3

  for i <= 5{
    fmt.Println("Hello world!")
    i = i + 1
  }
}

Let's look through the code so you can understand For loops! As always we start with the basic stuff :

package main

import (
  "fmt"
)

function main() {
  //blah blah blah
}

The first thing I do is declare a variable named i, and I give it a value of 3. You might be asking yourself why I wrote a colon and an equals instead of an equal. well, this is why :

Colon + Equals is for declaration + assignment
Equals is for declaration

After doing all that, this is our code :

package main

import (
  "fmt"
)

function main() {
  i := 3
}

And now the real thing starts! First I start the for arguments, so I say :

function main() {
  i := 3

  for i <= 5{
    //blah blah blah
  }
}

Now you might be asking yourself what <= means. In Go it means less than or equal to. After this, you now put the easy stuff inside the for loop. My first line inside the for loop prints Hello world!, and the other one adds 1 to i, and when i is equal to 5 it will stop printing Hello world!

This was the final code :

package main

import (
    "fmt"
)

func main() {
  i := 3

  for i <= 5{
    fmt.Println("Hello world!")
    i = i + 1
  }
}

And this was the result of the console :

Hello world!
Hello world!
Hello world!

The end 👋

If you've reached this part, congrats. This is the end! Don't forget to follow me on :

If you want to play with me on Lichess, challenge me to a match!

How to .go

Hugoonreplit — Tue, 21 Feb 2023 17:42:43 +0000

Introduction

Hey people,

have you ever heard about Go? Well, let me tell you that Go is amazing! If you don't know a lot of things about Go, here are some bullet points :

statically typed, compiled high-level programming language
Designed at Google
syntactically similar to C, but with memory safety, garbage collection, structural typing, and CSP-style concurrency
It has a mascot which is really cool
It's very very fast

Go on Replit

Replit has hundreds of programming languages templates, and when I say hundreds I mean it. There are some Go related templates, for example these :

Go
Go HTTP Template
Beego
Discordgo

These are some popular templates, I actually made Beego! Starting using Go in Replit is very simple, if you don't have account, follow these steps :

Go to https://join.replit.com/Hugo (it's my code 😄)
Fill in all the details
Once you've filled all the details verify your accounts by email
Once your account is verified click on the create button and search Go
Select Go, put a title to your repl and click on the Create Repl button

Once you've clicked on the Create Repl button you will enter to the workspace, where you will be able to start coding!

Writing your first line of Go

Since I started learning Go, I loving it! First you will need to type this into the main.go file :

package main

The package main tells the Go compiler that the package should compile as an executable program instead of a shared library.

After that we will import fmt. fmt is a Go package that is used to format basic strings, values, inputs, and outputs. This should be what you have after :

package main

import (
  "fmt"
)

And finally you will print your first line of Go, your code should now look like this :

package main

import (
  "fmt"
)

func main() {
    fmt.Println("Hello, World!")
}

If you're asking yourself why the function main is used, it's because it's the most basic function of the Golang, and its primary purpose is to act as the entry point for the executable code or programs.

You might find it difficult, but I remember all those 9 lines in 30 seconds, and if I can do it, I'm sure you can!

Comments in Go

Comments in Go are like in JS, just put 2 slashes. Like this :

// This is a comment!

Math Stuff in Go

By Math stuff I mean multiplication, addition... Let's start with some things simple, so you can know how to this things in Go :

Multiply
Divide
Add
Substract

This is a program that prints some numbers using all the things I listed above :

package main

import (
  "fmt"
)

func main() {
  fmt.Println(1*2)
  fmt.Println(1/2)
  fmt.Println(1+2)
  fmt.Println(1-2)
}

Very simple!

Variables in Go

Variables are very easy, to make a variable first you start with this :

var

As you might have noticed var is short for variable! After you put var, you need to give a name to the variable. Remember that the variable name can't have illigal characters :

var world

And finally you just have to put and equals and after the equals you will put the value of your variable! Like this :

var world = "world"

Here is a simple program that uses variables :

package main

import (
  "fmt"
)

func main() {
  var world = "world"
  fmt.Println("Hello", world)
}

If/Else/Else if statements in Go

If, Else and Else if statements on Go are quite simple. They're like a mix of Python and JS If and Else statements.

To make an if/else if, first you put the if or else if statement and after the condition and then you open the strage brackets :

if //condition{

}

else if //condition{

}

And for else like this :

else {

}

Here is a program that includes an If and Else statement :

package main

import (
  "fmt"
)

func main() {
  var x = 5

  if x == 5{
    fmt.Println("x = 5")
  }else {
    fmt.Println("x does not equal 5")
  }
}

Very simple, and now let's make some changes so that if x equals to 3 it will print something! This is the final result :

package main

import (
  "fmt"
)

func main() {
  var x = 5

  if x == 5 {
    fmt.Println("x = 5")
  } else if x < 6 {
    fmt.Println("x is less than 6")
  } else if x > 6 {
    fmt.Println("x is bigger than 6")
  } else {
    fmt.Println("x does not equal 5 and is not less than or bigger than 6")
  }
}

Always remember that the else statement is always the last statement, else can't go before else if!

Function in Go

And lastly functions in Go. Functions are quite easy, if you know Python, making Go function will be easy for you, as they look quite similar.

First you say that it's a function, like this :

func

After that you will need to put the function name and brackets and then strage brackets, like this :

func Hello() {}

And finally you put what you want it to do inside the strange brackets, like this :

func Hello() {
  fmt.Println("Hello world")
}

That was easy!

The Go Challenge

Now it's your turn, this is the challenge! Make a function that gets 2 numbers that we said in the function, and one of these math methods :

Addition - In function it'll be Add
Substraction - In function it'll be sub
Multiplication - In function it'll be mul
Division - In function it'll be div

The numbers given on the function are intigers and the math method is a string. It might look very simple, but it isn't!

If you finish the challenge, post your answers in the comments!

The end 👋

If you've reached this part, congrats. This is the end! Don't forget to follow me on :

If you want to play with me on Lichess, challenge me to a match!

How I Did A Emailing System!

Hugoonreplit — Wed, 24 Aug 2022 23:19:49 +0000

About me!

Hey, Hugoonreplit here! Im a 14 year old Spanish computer science student which love web development and learning new things. I am a active Replit user which loves to create open source projects and them presenting them or publishing them. Feel free to DM me on Twitter or just by Dumpy my address is Hugo@dumpy.md . But enough talking about me and let's start this!

What is an Emailing System

This is the Google def for Emailing System :

A system that allows users to send and receive messages through a computer network

I've got another def which is very controversial and people may not identify an Emailing System with, but everyone has their own personal opinion. My def is :

A System where people can receive messages + led by a company which then sells all your data!

2 very similar different def.

Emailing Systems examples

· Dumpy
· Gmail
· Mail.com
· Zoho mail
· Outlook

4 of them famous, Dumpy still not :(

My Emailing System : Dumpy

Yes, as you might have spotted by the photo of the post my emailing system is called Dumpy, making a reference to a Dumpling. Look I love Dumplings + I was Hungry and was not willing to search for other food. Dumpy is made with Python and uses Markdown as an inbox, so what does this means? No more clicking buttons to style your emails or Dum's as it's called in Dumpy. Since Dumpy uses Markdown you can style your messages with Markdown! Markdown == Cool 😎. If you use Dumpy you are cool 😎, but if you use Gmail you are not cool 😡.

How to be a Dumpy master

· First you need to know all of this info :
· In Dumpy you are Dumming
· Dumpy Addresses are formed like this :

username + "@dumpy.md" · A user doesn't send Email's, he sends Dum's · Replit Employees are top Dumpy users · If you are a Dumpy user you should follow Hugoonreplit on Replit!

If you learn't all this you are officially a Dumpy master!

Python

Before reviewing the code you first have to learn about Python and Markdown because they are the programming languages that Im using to create Dumpy. This is what Wikipedia says about Python :

Python (1991) is a language of high level programming interpreted whose philosophy emphasizes the legibility of its code, which it uses to develop applications of all types, ejemplos: Instagram, Netflix, Spotify, Panda 3D, among others.

And we also should learn about the creator :

Guido van Rossum is a computer scientist, known for being the author of the Python programming language. He was born and raised in the Netherlands. Wikipedia

Markdown

Before reviewing the code you first have to learn about Python and Markdown because they are the programming languages that Im using to create Dumpy. This is what Wikipedia says about Markdown :

Markdown is a lightweight marking language created by John Gruber and Aaron Swartz that tries to achieve maximum legibility and ease of publication both in its entry and exit forms, inspired by many existing conventions for marking electronic mail messages using plain text.

The code

Now we have come to the part everyone loves and was waiting for : The code. I only use 1 files for Dumpy and I do recommend that if you want to learn open a Python file and keep on track. I recommend Replit to do this so create a Python Repl. Or you can just check the files and pls like the and follow me if you liked it!

· https://replit.com/@Hugoonreplit/Dumpy?v=1

Imports

For Dumpy I used 2 imports which I consider very important and that in my opinion should always be added when doing a app on Python. The imports are import time and from datetime import datetime. These imports are very important for these reasons :

1) Organizes
2) Important in the inbox

Configuring the imports

Then I have to organize/define the import of datetime to do this we will type these 2 line :

now = datetime.now() current_time = now.strftime("%H:%M:%S")

This lines will help us to know the time a message was sent. As you have may spotted the time I use for messages is Hours, Minutes and Seconds. I will be adding days, week, month and year in the 0.2 version.

Username

Then we have to have the correct data to create a Dumpy address. The user can choose whatever username they want so it is very fun, but this will maybe not be available in the 0.2 since repl identity might be presented, but I doubt I will add it because Dumpy is 100% public! But what do we do to get the username, well it is as simple as this : username = input("Dumpy Username:") we just type an input and at the start of it we put it a name so we can identify it!

Creating an address

In my opinion this was the trickiest but most enjoyable part of creating Dumpy. First we need to create a Markdown file with a username and the direction, f=open(username+"@dumpy.md","a+"). And then we have to define a Dumpy Markdown Address, dumpy_markdown_address = username + "@dumpy" ".md" and finally I will show the users what their address is, print("Your Dumpy markdown address is " + dumpy_markdown_address)

Design is important

Yes design is important, but bro what do you want me to do on Python a Figma freelancer payed project??? I had to do some boring things and organized, print() print() time.sleep(1).

Defining a Dum

As I mentioned earlier the word email doesn't exist in Dumpy, it's called Dum, not dumb, dum. This is easy and it's like the username part : dum = input("Address:").

Dumming a person

This was one of the most trickiest parts if not the most trickiest one. I had to send a message to a file, well just actually adding text! And this is what I did : f=open(dum,"a+") data=str(input(current_time+ "|" +username+":")) f.write("\n") f.write(current_time+ "|" +username+":"+data) f.write("\n") print("Message Successfully Delivered") f.close(). Wow with only that amount of lines you can send a message. Not actually Dumpy was only made with 19 so it mind blowing 🤯!

Conclusion

If you've gotten to this part is because you are the best person in the world and you like Dumpy or just because you scrolled down to see the coding part. But let's get to the real conclusion. Dumpy is only 19 lines, when you apply to jobs they ask you for project, but it's not the size that matters it's the purpose and it's functionality!

Support me

Follow me on Replit @hugoonreplit
Follow me on Github @hugoonreplit
Sponsor me on Github @hugoonreplit
Follow me on Github @Twitter
Like and Share Dumpy https://replit.com/@Hugoonreplit/Dumpy?v=1

Thanks for reading!

-- Hugoonreplit, Hugo Urías Lombraña.
-- Madrid, Spain.
-- Hugoonreplit@gmail.com