Kata

Background info

To be able to complete the kata, you will need to be able to comprehend these two resources:

• Array.prototype.reduce()
• Currying

Definition

With that in the back of our minds, let's make a wholly insane function! The idea is that our function returns a reduce function that is agnostic to the amount of function calls, arguments and array nests in between. What?! Let's look at some examples to clarify:

const adder = (accumulator, next) => accumulator + next;
const add = hyperReduce(adder, 0);

add has become a function that would have the following inputs and outputs

• add(3) //=> 3
• add(3, 3, 3) //=> 9
• add(3, 3, 3)(3) //=> 12
• add(3, 3, 3)([3,3]) //=> 15
• add(3, 3, 3)([3,[3]]) //=> 15
• add([[[[[[[[[[3]]]]]]]]]])() => 3

Misc

You are also expected to be able to handle multiplication, division, concatenation and composition. Couldn't think of a legitimate use case except for code challenges. Enjoy implementing this :) If there's anything I left vague, look at the test cases. Anything else was unintentional so please let me know.