helloworld

Hello World in Multiple Languages Extravaganza: Perl

Hello world project extravaganza, the Perl version.

Synopsis

This repository contains a version of “Hello World” programs written in Perl;

indeed this is part of a fun and educational project that showcases how to print “Hello World” in different programming languages. The goal is to have a “Hello World” program in every programming language. This project is inspired by the GitHub Hello World project and you can found it in Hello World Extravaganza website.

check out the code

To get started, clone this repository to your local machine:

git clone https://github.com/silviotorre/helloworld.git

Getting Started

To run the “Hello World” program navigate to the project directory and run the program. Follow the instructions below to run the “Hello World”.

• If you’re on a Unix-like system, Perl is likely already installed. If you’re on Windows, you can download Perl from ActiveState.
• Open a terminal or command prompt: Launch your terminal or command prompt application.
• Navigate to the Perl directory.
• Compile the program following the example below
• After successful compilation, run the following command to execute the compiled program like in example below

perl hello_world.pl 

Here’s an example of a more complex “Hello, World!” program in Perl. This one use regular expression and substitution operator ‘s///’ and the flexibility of Perl to print the string in different ways. Checkout the code in the file hello_world2.pl and try to use say instead of print to see the difference.

```perl
Perl build hello_world2.pl
``` ## Rest API A rest API is an application program interface (API) that uses HTTP requests to GET, PUT, POST and DELETE data. In Perl can be used to create a REST API using various frameworks. One of the popular ones is Dancer. The following is an example of how you can create a simple REST API using Dancer that returns "Hello, World!". - Install Dancer using as in example below - run the app.pl file also in example below - then open a browser and navigate to http://localhost:3000/hello/

cpan Dancer
perl app.pl

the output should be like this:

$ perl app.pl
>> > Dancer2 v0.300000 server 12045 listening on http://0.0.0.0:3000

Dancer is a lightweight web application framework for Perl.

tasks

• basic “Hello World” Perl program
• Advanced “Hello World” Perl program

Extra Credit

• Add a flexibile example to the program
• Add a rest api to the program

Contributing

Feel free to contribute your own “Hello World” programs to this repository. Simply create a new directory with the name of the programming language and add a file named hello-world. with your implementation. Don't forget to update the README file to include your contribution!

Contributors

• Silvio Torre (silviotorre) - creator, maintainer

License

• This project is licensed under the MIT License - see the MIT file for details

References

• GitHub Hello World

Home of this project

• GitHub Hello World Extravaganza

Enjoy and happy coding!

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