Refactoring day1

node_modules/mongoose/lib/schema/documentarray.js

@@ -361,11 +361,6 @@ DocumentArrayPath.prototype.cast = function(value, doc, init, prev, options) {
   // lazy load
   MongooseDocumentArray || (MongooseDocumentArray = require('../types/documentarray'));
 
-  // Skip casting if `value` is the same as the previous value, no need to cast. See gh-9266
-  if (value != null && value[arrayPathSymbol] != null && value === prev) {
-    return value;
-  }
-
   let selected;
   let subdoc;
   const _opts = { transform: false, virtuals: false };
@@ -518,26 +513,6 @@ function scopePaths(array, fields, init) {
   return hasKeys && selected || undefined;
 }
 
-/**
- * Sets a default option for all DocumentArray instances.
- *
- * ####Example:
- *
- *     // Make all numbers have option `min` equal to 0.
- *     mongoose.Schema.DocumentArray.set('_id', false);
- *
- * @param {String} option - The option you'd like to set the value for
- * @param {*} value - value for option
- * @return {undefined}
- * @function set
- * @static
- * @api public
- */
-
-DocumentArrayPath.defaultOptions = {};
-
-DocumentArrayPath.set = SchemaType.set;
-
 /*!
  * Module exports.
  */