README.md

babel-plugin-reduce-with-operator

This plugin allows you reduce an array, without writing callback function. Example arr.reduceWithOperator(+). It looks for reduceWithOperator member function call and converts it into native reduce function with a callback. Currently it supports +, -, *, / and % operators.

Note: This plugin uses custom parser to support operators as arguments.

Installation 🛠

• Install plugin

  yarn add babel-plugin-reduce-with-operator -D

• Add plugin your babel configuration file, i.e. .babelrc

  {
    ...
    "plugins": [
      "babel-plugin-reduce-with-operator"
    ]
  }

Usage 💻

const arr = [1,2,3];
const sum = arr.reduceWithOperator(+);
console.log(sum); // 6

For sample usage, you can check examples, or you can test on your browser.

Credits 🙇‍♂️

• Tan Li Hau: https://lihautan.com/creating-custom-javascript-syntax-with-babel/
• Kent C Dodds: https://www.youtube.com/watch?v=VicU_XwriWw
• Babel Plugin Handbook: https://github.com/jamiebuilds/babel-handbook/blob/master/translations/en/plugin-handbook.md