Deno - Hola mundo, "Hello, World"

Hoy te enseño como puedes hacer un “Hola mundo” usando DenoJs.

#deno #node #javascript #typescript #web-development

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Deno - Hola mundo, "Hello, World"

Hoy te enseño como puedes hacer un “Hola mundo” usando DenoJs.

#deno #node #javascript #typescript #web-development

“Hello, World!” in Different Programming Languages and Times

I am almost 100% sure that when you start programming in a language, you look for an example like the famous “Hello, world!” In this article, I compile how to do it in 31different programming languages that, for one reason or another, I have known or used in my life and a short description with some useful or curious data.

1. Java

It is a general-purpose, object-oriented programming language based on classes.

• First appeared: 1995; 25 years ago. 😱
• Last stable release: Java SE 15[2]. 15; September 2020; Recently.

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Codechef
{
 public static void main (String[] args) throws java.lang.Exception
 {
  System.out.println("Hello, world!");
 }
}

2. JavaScript

JavaScript or “Js” is a programming language that conforms to the ECMAScript specification. JavaScript is high-level, often just-in-time compiled, and multi-paradigm.

• First appeared: 1995; 25 years ago. 😱
• Last Stable release: 2.5.1. January 2020; Recently.

console.log("Hello world!");

3. CoffeeScript

CoffeeScript is a programming language inspired by Ruby that compiles to JavaScript.

• First appeared: 2009; 11 years ago.
• Last stable release: 2.5.1 ;January 2020; Recently.

console.log 'Hello, world'

4. HTML

Hypertext Markup Language is the standard markup language for documents designed to be displayed in a web browser.

Hello world!

• First appeared: 1993; 27 years ago. 😱
• Last stable release: Living Standard, 2020.

5. Swift

Swift is a multi-paradigm, general-purpose, and compiled programming language developed by Apple with the open-source community.

println("Hello, world!")

• First appeared: 2014; 6 years ago.
• Last stable release: 5.3; September 2020. Recently.

#programming-languages #software-development #programming #coding #hello-world

Python Flask Tutorial 2 - Create a Hello World App | how "Hello, World!" Of Flask works

Hello! Welcome to the Python Flask Tutorial series. In this series, we’ll learn about Flask, a micro framework built using Python, with the help of a project!
In this video, we setup our project directory structure, see how “Hello, World!” Of Flask works and implement it.

#python #django

Hello, World!

👋

Learning WebAssembly: Hello, World of Wasm!

Getting started with WebAssembly: writing and executing a simple program in Wat.

Let’s try WebAssembly for the first time. We will create a simple program in the Wat text format, compile it into Wasm binary, and finally execute it in a browser and as a server application.

This is the first part of a series about programming in WebAssembly (Wasm) for beginners. The goal is to give you the first impression of what Wasm is and how it can be beneficial for your own projects. The further the series goes the deeper we will delve into the topic.

I suppose you have already heard about WebAssembly; how performant, lightweight, secure, and overall promising it is. Otherwise, you probably would not be reading this text right now, would you? So, I will just skip all that fluff and go directly to the more interesting stuff: like how to write Wasm code and how to actually use it.

Wasm and Wat

Wasm is a binary format (files with the .wasm extension). It also has a textual representation called Wat (files with the .wat extension). Wat could easily be generated from the binary format, for example via developer tools in the browser.

Albeit Wat is a text format readable by humans, it is still pretty low-level — programming complex systems in Wat would quickly become a nightmare. But no worries, Wasm can be compiled from many languages like Rust, C/C++, Go, or Kotlin. Just choose your favourite one!

Hello, WebAssembly!

To understand the very basics we will start at quite a low-level. Well, not on the binary level, all in all, it was never meant to be written or read by humans. We will create a simple Hello world program in Wat, the WebAssembly text format.

#webassembly #web-development #programming #developer