var castPath = require('./_castPath'),
    last = require('./last'),
    parent = require('./_parent'),
    toKey = require('./_toKey');

/** Used for built-in method references. */
var objectProto = Object.prototype;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/**
 * The base implementation of `_.unset`.
 *
 * @private
 * @param {Object} object The object to modify.
 * @param {Array|string} path The property path to unset.
 * @returns {boolean} Returns `true` if the property is deleted, else `false`.
 */
function baseUnset(object, path) {
  path = castPath(path, object);
  object = parent(object, path);
  var key = toKey(last(path));
  return !(object != null && hasOwnProperty.call(object, key)) || delete object[key];
}

module.exports = baseUnset;