https://github.com/leoandersoon/mapping-example

Created an example of mapping in Solidity world. <3 it mate
https://github.com/leoandersoon/mapping-example

Last synced: 2 days ago
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Created an example of mapping in Solidity world. <3 it mate

• Host: GitHub
• URL: https://github.com/leoandersoon/mapping-example
• Owner: leoandersoon
• License: mit
• Created: 2022-03-18T18:40:55.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2022-03-19T05:24:35.000Z (over 4 years ago)
• Last Synced: 2026-06-23T03:39:29.064Z (2 days ago)
• Language: Solidity
• Size: 11.7 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

Awesome Lists containing this project

README

          
  
Mapping in Solidity


  


    An example of mapping in Solidity world

    


  


  Table of Contents

  


    


      About The Project

      


        
Built With

      

    

    
Usage

    
Contributing

    
License

    
Contact

  


## About The Project

In many programming languages, map is the name of a higher-order function that applies a given function to each element of a collection, e.g. a list or set, returning the results in a collection of the same type. It is often called apply-to-all when considered in functional form.

So what about Smart Contract Development? 

Here're a few properties of mapping in Solidity:

* Mappings are not iterable

* Mapping always returns a value

* If the value was never set, it will return the default value

* You can get values from a nested mapping even when it is not initialized

This repo is not a tutorial, well it's just an example as I mentioned at the heading. We're going to see how to create a map in Solidity smart contract development.

### Built With

This project is built with Solidity. Basically, you don't have to donwload anything to work on Solidity so there are a few online IDE's to do it. Such as;

* [Remix - Ethereum IDE](https://remix.ethereum.org/)

* [Solidity by Example](https://solidity-by-example.org/)

## Contributing

Contributions are what make the open source community such an amazing place to be learn, inspire, and create. Any contributions you make are **greatly appreciated**.

1. Fork the Project

2. Create your Feature Branch (`git checkout -b feature/AmazingFeature`)

3. Commit your Changes (`git commit -m 'Add some AmazingFeature'`)

4. Push to the Branch (`git push origin feature/AmazingFeature`)

5. Open a Pull Request

## License

Distributed under the MIT License. See `LICENSE` for more information.

## Contact

Leo Anderson - [@leoandersoon](https://twitter.com/leoandersoon) - leoanderson633@protonmail.ch

Project Link: [https://github.com/leoandersoon/mapping-example](https://github.com/leoandersoon/mapping-example)