https://github.com/olaven/fun

Util library for functional programming in Deno
https://github.com/olaven/fun

deno functional-programming library typescript

Last synced: 8 months ago
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Util library for functional programming in Deno

• Host: GitHub
• URL: https://github.com/olaven/fun
• Owner: olaven
• License: lgpl-3.0
• Created: 2020-05-09T09:31:25.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2020-06-23T13:35:46.000Z (over 5 years ago)
• Last Synced: 2025-01-27T11:16:34.696Z (10 months ago)
• Topics: deno, functional-programming, library, typescript
• Language: TypeScript
• Size: 19.5 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

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README

          
# Fun ![Test](https://github.com/olaven/fun/workflows/Test/badge.svg) [![deno doc](https://doc.deno.land/badge.svg)](https://doc.deno.land/https/raw.githubusercontent.com/olaven/fun/master/mod.ts) [![codebeat badge](https://codebeat.co/badges/7529200f-9cc1-4049-80f6-b3f4f06dfc4b)](https://codebeat.co/projects/github-com-olaven-fun-master)

Tiny utility library for functional programming in Deno/Deno   

## About 

This is a learning project I created because I wanted to understand some 

concepts in functional programming. Use the library if you want, but keep 

in mind that it is not meant to be anything serious. 

## Getting started 

One function is exported: `fun`. You pass a value to it. 

In return, it gives you functions to apply to your value. 

These functions are: 

`map`, `apply`, `run` and `get`. 

* `map` -> transform to new type 

* `apply` -> transform within same type 

* `run` -> run arbitrary code 

* `get` -> get your value back

See the example below: 

```typescript

// Node 

// - npm install fun-node

import { fun } from "fun-node"

// Deno 

import { fun } from "https://denopkg.com/olaven/fun" 

interface Person { name: string, salary: number }

const person: Person = { name: "joe", salary: 100 }; 

const format_salary = (person: Person) => 

    fun(person)

        .map(person => person.salary)

        .map(salary => salary.toString())

        .apply(salary => `${salary},-`)

        .get();

//prints 100,-

console.log(format_salary(person));

```