node-red-contrib-cloud-firestore/src/utils.js

Node-RED nodes to handle google cloud firestore read and write operations.

function objectTypeOf(object) {
  return Object.prototype.toString.call(object);
}

/**
 * Traverses Objects and or Arrays applying specified conditions through a function
 * @param object Object , Array - Object under traversal
 * @param func Function - function applying effects to an objects property
 */
function traverse(object, func) {
  const objectType = objectTypeOf(object);
  if (objectType === '[object Object]') {
    for (let key in object) {
      if (object.hasOwnProperty(key)) {
        const skip = func(object, key);
        if (skip) {
          continue;
        }
        traverse(object[key], func);
      }
    }
  } else if (objectType === '[object Array]') {
    object.forEach((val, index) => {
      const skip = func(object, index);
      if (skip) {
        return;
      }
      traverse(val, func);
    });
  }
}

module.exports = {
  traverse,
  objectTypeOf
};