Override a function in an existing view

Slack Note : May 21st 2019

Example code for overriding a function in an existing view. Need to drop the code into the main js file for the extension.

define('ExternalImages', ['Item.Model'], function (ItemModel) {
   'use strict';
   return   {
      mountToApp: function (application){

      ItemModel.prototype.getImages = _.wrap(ItemModel.prototype.getImages, function(fn){ 
          console.log("foo");
      }
   };
});

If we want to “extend” the class, we can call the original version with `fn.apply(this, _.toArray(arguments).slice(1));`

(like if the original version of the function has output you want to modify, like getContext).