normalizer

normalizer.js

const normalize = (input, normalizer) => {
  return Object.keys(input).reduce((obj, curr) => {
    if (input[curr] instanceof Object && !Array.isArray(input[curr])) {
      obj[curr] = normalize(input[curr], normalizer[curr]);
    } else if (Object.prototype.hasOwnProperty.call(normalizer, curr)) {
      obj[curr] = normalizer[curr](input[curr]);
    } else {
      obj[curr] = input[curr];
    }

    return obj;
  }, {});
};