Converge branching functions
JavaScript, Function · Jan 7, 2021
Accepts a converging function and a list of branching functions and returns a function that applies each branching function to the arguments and the results of the branching functions are passed as arguments to the converging function.
- Use
Array.prototype.map()andFunction.prototype.apply()to apply each function to the given arguments. - Use the spread operator (
...) to callconvergerwith the results of all other functions.
const converge = (converger, fns) => (...args) =>
converger(...fns.map(fn => fn.apply(null, args)));const average = converge((a, b) => a / b, [
arr => arr.reduce((a, v) => a + v, 0),
arr => arr.length
]);
average([1, 2, 3, 4, 5, 6, 7]); // 4
