@nozbe/watermelondb/src/utils/fp/pipe/index.js

Build powerful React Native and React web apps that scale from hundreds to tens of thousands of records and remain fast

// @flow

type Pipe = (<A, B, C, D, E, F, G>(
  ab: (A) => B,
  bc: (B) => C,
  cd: (C) => D,
  de: (D) => E,
  ef: (E) => F,
  fg: (F) => G,
) => (A) => G) &
  (<A, B, C, D, E, F>(
    ab: (A) => B,
    bc: (B) => C,
    cd: (C) => D,
    de: (D) => E,
    ef: (E) => F,
  ) => (A) => F) &
  (<A, B, C, D, E>(ab: (A) => B, bc: (B) => C, cd: (C) => D, de: (D) => E) => (A) => E) &
  (<A, B, C, D>(ab: (A) => B, bc: (B) => C, cd: (C) => D) => (A) => D) &
  (<A, B, C>(ab: (A) => B, bc: (B) => C) => (A) => C) &
  (<A, B>(ab: (A) => B) => (A) => B)

function pipe(...fns: ((any) => any)[]): (any) => any {
  const fnsLen = fns.length
  return (...args) => {
    let result

    if (fnsLen) {
      result = fns[0](...args)
      for (let i = 1; i < fnsLen; i++) {
        result = fns[i](result)
      }
    }

    return result
  }
}

export default (pipe: Pipe)