easy-peasy/src/lib.js

Easy peasy global state for React

export const isStateObject = x =>
  x !== null && typeof x === 'object' && !Array.isArray(x);

export const get = (path, target) =>
  path.reduce(
    (acc, cur) => (isStateObject(acc) ? acc[cur] : undefined),
    target,
  );

export const set = (path, target, value) => {
  path.reduce((acc, cur, idx) => {
    if (idx + 1 === path.length) {
      acc[cur] = value;
    } else {
      acc[cur] = acc[cur] || {};
    }
    return acc[cur];
  }, target);
};