riot/esm/dependencies/cumpa/index.js

Simple and elegant component-based UI library

/* Riot WIP, @license MIT */
/**
 * Similar to compose but performs from left-to-right function composition.<br/>
 * {@link https://30secondsofcode.org/function#composeright see also}
 * @param   {...[function]} fns) - list of unary function
 * @returns {*} result of the computation
 */

/**
 * Performs right-to-left function composition.<br/>
 * Use Array.prototype.reduce() to perform right-to-left function composition.<br/>
 * The last (rightmost) function can accept one or more arguments; the remaining functions must be unary.<br/>
 * {@link https://30secondsofcode.org/function#compose original source code}
 * @param   {...[function]} fns) - list of unary function
 * @returns {*} result of the computation
 */
function compose(...fns) {
  return fns.reduce((f, g) => (...args) => f(g(...args)))
}

export { compose as default };