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Текущая директория: /opt/bitgo-express/node_modules/lodash

Просмотр файла: _baseHas.js

var getPrototype = require('./_getPrototype');

/** 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 `_.has` without support for deep paths.
 *
 * @private
 * @param {Object} [object] The object to query.
 * @param {Array|string} key The key to check.
 * @returns {boolean} Returns `true` if `key` exists, else `false`.
 */
function baseHas(object, key) {
  // Avoid a bug in IE 10-11 where objects with a [[Prototype]] of `null`,
  // that are composed entirely of index properties, return `false` for
  // `hasOwnProperty` checks of them.
  return object != null &&
    (hasOwnProperty.call(object, key) ||
      (typeof object == 'object' && key in object && getPrototype(object) === null));
}

module.exports = baseHas;

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