@cookbook/dot-notation/lib/utils/get-key.js

Object readings and complex transformations using dot notation syntax.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

function _toArray(arr) { return _arrayWithHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter); }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

/**
 * Get initial key from dot notation path
 * @description returns first key defined in dot notation and the remaining path
 * @param {string} value
 * @returns {[string, string | undefined]} - returns key, remaining dot notation path and isArray,
 */
var getKey = function getKey(value) {
  var _value$split$filter = value.split(getKey.regexp).filter(Boolean),
      _value$split$filter2 = _toArray(_value$split$filter),
      current = _value$split$filter2[0],
      remaining = _value$split$filter2.slice(1);

  return [current, remaining.length ? remaining.join('.') : undefined];
};

getKey.regexp = /\.|(\[[^\]]*])|(\[-*\d*])/;
var _default = getKey;
exports.default = _default;