MAGETWO-87935: #13685: Replaced .size() with .length to be compatible with jQuery 3.* #13686

 - Merge Pull Request #13686 from kirmorozov/magento2:2.3-develop-13685
 - Merged commits:
   1. 52875a8

Author: magento-engcom-team

app/code/Magento/Swatches/view/frontend/web/js/swatch-renderer.js

@@ -90,7 +90,7 @@ define([
                 $title,
                 $corner;
 
-            if (!$element.size()) {
+            if (!$element.length) {
                 $element = $('<div class="' +
                     $widget.options.tooltipClass +
                     '"><div class="image"></div><div class="title"></div><div class="corner"></div></div>'
@@ -810,7 +810,7 @@ define([
             $widget._Rewind(controls);
 
             // done if nothing selected
-            if (selected.size() <= 0) {
+            if (selected.length <= 0) {
                 return;
             }
 
@@ -820,7 +820,7 @@ define([
                     id = $this.attr('attribute-id'),
                     products = $widget._CalcProducts(id);
 
-                if (selected.size() === 1 && selected.first().attr('attribute-id') === id) {
+                if (selected.length === 1 && selected.first().attr('attribute-id') === id) {
                     return;
                 }
 
@@ -1016,7 +1016,7 @@ define([
         _EnableProductMediaLoader: function ($this) {
             var $widget = this;
 
-            if ($('body.catalog-product-view').size() > 0) {
+            if ($('body.catalog-product-view').length > 0) {
                 $this.parents('.column.main').find('.photo.image')
                     .addClass($widget.options.classes.loader);
             } else {
@@ -1035,7 +1035,7 @@ define([
         _DisableProductMediaLoader: function ($this) {
             var $widget = this;
 
-            if ($('body.catalog-product-view').size() > 0) {
+            if ($('body.catalog-product-view').length > 0) {
                 $this.parents('.column.main').find('.photo.image')
                     .removeClass($widget.options.classes.loader);
             } else {