functionalscript/types/btree/module.f.js

FunctionalScript is a purely functional subset of JavaScript

import { flat } from "../list/module.f.js";
import { map } from "../nullable/module.f.js";
const nodeValues = node => () => {
    switch (node.length) {
        case 1:
        case 2: {
            return node;
        }
        case 3: {
            return flat([
                nodeValues(node[0]),
                [node[1]],
                nodeValues(node[2])
            ]);
        }
        default: {
            return flat([
                nodeValues(node[0]),
                [node[1]],
                nodeValues(node[2]),
                [node[3]],
                nodeValues(node[4])
            ]);
        }
    }
};
export const empty = null;
export const values = map(nodeValues);