Futuristic functional language for web dev

babel.config.js

module.exports = {
  plugins: [
    ["@babel/plugin-proposal-pipeline-operator", { "proposal": "fsharp" }],
    ["@babel/plugin-proposal-partial-application"]
  ]
}

index.js

const input = '1, 2,   3,  4  '

const Str = {
  split: (...args) => String.prototype.split.call(...args),
  trim: (...args) => String.prototype.trim.call(...args),
}

const Arr = {
  map: (...args) => Array.prototype.map.call(...args),
  reduce: (...args) => Array.prototype.reduce.call(...args),
  filter: (...args) => Array.prototype.filter.call(...args),
  join: (...args) => Array.prototype.join.call(...args),
  length: val => val.length
}

const Num = {
  parseInt: (...args) => parseInt(...args)
}

const toNumber = x => x 
  |> Str.trim
  |> Num.parseInt


const numbers = input 
  |> Str.split(?, ',')
  |> Arr.map(?, toNumber(?))

const negatives = Arr.filter(numbers, x => x < 0)

if (Arr.length(negatives) > 0) {
  const msg = Arr.join(negatives, ',')
  throw Error(`No negatives: ${msg}`)
}

numbers
  |> Arr.reduce(?, (acc, curr) => acc + curr, 0)
  |> console.log

Math.random() |> console.log

package.json

{
  "dependencies": {
    "@babel/core": "^7.12.10",
    "@babel/node": "^7.12.10",
    "@babel/plugin-proposal-partial-application": "^7.12.1",
    "@babel/plugin-proposal-pipeline-operator": "^7.12.1",
    "chokidar": "^3.5.0"
  }
}