Creating A Reusable Pipe Using JavaScript

Create a generic pipe function.

const pipe = (…fns) => (arg) => fns.reduce((value, fn) => fn(value), arg)

Use it to create a reusable pipe.

const calculateProfit = pipe(
// Deduct VAT (8%)
value => value * (1 – 0.08),
//…


This content originally appeared on DEV Community and was authored by Wendley Paulo de França

Create a generic pipe function.

const pipe = (...fns) => (arg) => fns.reduce((value, fn) => fn(value), arg)

Use it to create a reusable pipe.

const calculateProfit = pipe(
  // Deduct VAT (8%)
  value => value * (1 - 0.08),
  // Deduct tax (15%)
  value => value * (1 - 0.15),
  // Add external contributions
  value => value + 2500,
  // Split with co-founder (3 co-founders)
  value => value / 3
);

Use the pipe to perform calculation

const revenue = 50_000;
const profit = calculateProfit(revenue);

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This content originally appeared on DEV Community and was authored by Wendley Paulo de França


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