How do I write an arrow function in ES6 recursively?

Question

Arrow functions in ES6 do not have an arguments property and therefore arguments.callee will not work and would anyway not work in strict mode even

Answer 1

This is a version of this answer, https://stackoverflow.com/a/3903334/689223, with arrow functions.

You can use the U or the Y combinator. Y combinator being the simplest to use.

U combinator, with this you have to keep passing the function: const U = f => f(f) U(selfFn => arg => selfFn(selfFn)('to infinity and beyond'))

Y combinator, with this you don't have to keep passing the function: const Y = gen => U(f => gen((...args) => f(f)(...args))) Y(selfFn => arg => selfFn('to infinity and beyond'))