flo-utils/es/getValueByPath.js

some utils

/**
 * @name getValueByPath
 * @param {any} entity
 * @param {any} path  a.b.c.d
 * @param {string} [defaultValue=""]
 * @returns
 * @description 通过路径获取数据
 */
function getValueByPath(entity, path) {
  var defaultValue = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : '-';
  var props = path;

  if (typeof props === 'string') {
    props = props.split('.').filter(function (d) {
      return d;
    });
  }

  var current = entity;

  for (var i = 0; i < props.length; i += 1) {
    if (current === null || current === undefined) {
      return defaultValue;
    }

    current = current[props[i]];
  }

  if (current === null || current === undefined) {
    return defaultValue;
  }

  return current;
}

export default getValueByPath;