policyline/src/utils.js

Attributes Based Access Control library for Node.JS

function isObject(item) {
  return (item
    && typeof item === 'object'
    && !Array.isArray(item)
    && !(item instanceof RegExp));
}

function mergeDeep(target, source) {
  if (isObject(target) && isObject(source)) {
    for (const key in source) {
      if (isObject(source[key])) {
        if (!target[key]) {
          target[key] = {};
        }
        mergeDeep(target[key], source[key]);
      } else {
        target[key] = source[key];
      }
    }
  }
  return target || source;
}

export {
  mergeDeep
}