bootstrap-vue/es/utils/get.js

BootstrapVue, with over 40 plugins and more than 75 custom components, provides one of the most comprehensive implementations of Bootstrap v4 components and grid system for Vue.js. With extensive and automated WAI-ARIA accessibility markup.

"use strict";

exports.__esModule = true;
exports.default = void 0;

var _inspect = require("./inspect");

/**
 * Get property defined by dot/array notation in string.
 *
 * @link https://gist.github.com/jeneg/9767afdcca45601ea44930ea03e0febf#gistcomment-1935901
 *
 * @param {Object} obj
 * @param {string|Array} path
 * @param {*} defaultValue (optional)
 * @return {*}
 */
var get = function get(obj, path) {
  var defaultValue = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
  // Handle array of path values
  path = (0, _inspect.isArray)(path) ? path.join('.') : path; // If no path or no object passed

  if (!path || !(0, _inspect.isObject)(obj)) {
    return defaultValue;
  } // Handle edge case where user has dot(s) in top-level item field key
  // See https://github.com/bootstrap-vue/bootstrap-vue/issues/2762
  // Switched to `in` operator vs `hasOwnProperty` to handle obj.prototype getters
  // https://github.com/bootstrap-vue/bootstrap-vue/issues/3463


  if (path in obj) {
    return obj[path];
  } // Handle string array notation (numeric indices only)


  path = String(path).replace(/\[(\d+)]/g, '.$1');
  var steps = path.split('.').filter(Boolean); // Handle case where someone passes a string of only dots

  if (steps.length === 0) {
    return defaultValue;
  } // Traverse path in object to find result
  // We use `!=` vs `!==` to test for both `null` and `undefined`
  // Switched to `in` operator vs `hasOwnProperty` to handle obj.prototype getters
  // https://github.com/bootstrap-vue/bootstrap-vue/issues/3463


  return steps.every(function (step) {
    return (0, _inspect.isObject)(obj) && step in obj && (obj = obj[step]) != null;
  }) ? obj : defaultValue;
};

var _default = get;
exports.default = _default;