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/** * ObjectId type constructor * * #### Example: * *     const id = new mongoose.Types.ObjectId; * * @constructor ObjectId */
'use strict';
const ObjectId = require('../driver').get().ObjectId;const objectIdSymbol = require('../helpers/symbols').objectIdSymbol;
/** * Getter for convenience with populate, see gh-6115 * @api private */
Object.defineProperty(ObjectId.prototype, '_id', {  enumerable: false,  configurable: true,  get: function() {    return this;  }});
/*! * Convenience `valueOf()` to allow comparing ObjectIds using double equals re: gh-7299 */
if (!ObjectId.prototype.hasOwnProperty('valueOf')) {  ObjectId.prototype.valueOf = function objectIdValueOf() {    return this.toString();  };}
ObjectId.prototype[objectIdSymbol] = true;
module.exports = ObjectId;