diff --git a/assets/js/admin/meta-boxes-product.js b/assets/js/admin/meta-boxes-product.js
index d990c8b2326..dae179c4d8f 100644
--- a/assets/js/admin/meta-boxes-product.js
+++ b/assets/js/admin/meta-boxes-product.js
@@ -18,23 +18,23 @@ jQuery( function( $ ) {
 		});
 	});
 
-	// Prevent enter submitting post form
+	// Prevent enter submitting post form.
 	$( '#upsell_product_data' ).bind( 'keypress', function( e ) {
 		if ( e.keyCode === 13 ) {
 			return false;
 		}
 	});
 
-	// Type box
+	// Type box.
 	$( '.type_box' ).appendTo( '#woocommerce-product-data .hndle span' );
 
 	$( function() {
-		// Prevent inputs in meta box headings opening/closing contents
+		// Prevent inputs in meta box headings opening/closing contents.
 		$( '#woocommerce-product-data' ).find( '.hndle' ).unbind( 'click.postboxes' );
 
-		jQuery( '#woocommerce-product-data' ).on( 'click', '.hndle', function( event ) {
+		$( '#woocommerce-product-data' ).on( 'click', '.hndle', function( event ) {
 
-			// If the user clicks on some form input inside the h3 the box should not be toggled
+			// If the user clicks on some form input inside the h3 the box should not be toggled.
 			if ( $( event.target ).filter( 'input, option, label, select' ).length ) {
 				return;
 			}
@@ -43,15 +43,15 @@ jQuery( function( $ ) {
 		});
 	});
 
-	// Catalog Visibility
-	$( '#catalog-visibility' ).find( '.edit-catalog-visibility' ).click( function () {
+	// Catalog Visibility.
+	$( '#catalog-visibility' ).find( '.edit-catalog-visibility' ).click( function() {
 		if ( $( '#catalog-visibility-select' ).is( ':hidden' ) ) {
 			$( '#catalog-visibility-select' ).slideDown( 'fast' );
 			$( this ).hide();
 		}
 		return false;
 	});
-	$( '#catalog-visibility' ).find( '.save-post-visibility' ).click( function () {
+	$( '#catalog-visibility' ).find( '.save-post-visibility' ).click( function() {
 		$( '#catalog-visibility-select' ).slideUp( 'fast' );
 		$( '#catalog-visibility' ).find( '.edit-catalog-visibility' ).show();
 
@@ -65,7 +65,7 @@ jQuery( function( $ ) {
 		$( '#catalog-visibility-display' ).text( label );
 		return false;
 	});
-	$( '#catalog-visibility' ).find( '.cancel-post-visibility' ).click( function () {
+	$( '#catalog-visibility' ).find( '.cancel-post-visibility' ).click( function() {
 		$( '#catalog-visibility-select' ).slideUp( 'fast' );
 		$( '#catalog-visibility' ).find( '.edit-catalog-visibility' ).show();
 
@@ -88,10 +88,10 @@ jQuery( function( $ ) {
 		return false;
 	});
 
-	// PRODUCT TYPE SPECIFIC OPTIONS
-	$( 'select#product-type' ).change( function () {
+	// PRODUCT TYPE SPECIFIC OPTIONS.
+	$( 'select#product-type' ).change( function() {
 
-		// Get value
+		// Get value.
 		var select_val = $( this ).val();
 
 		if ( 'variable' === select_val ) {
@@ -129,7 +129,7 @@ jQuery( function( $ ) {
 		var is_virtual      = $( 'input#_virtual:checked' ).length;
 		var is_downloadable = $( 'input#_downloadable:checked' ).length;
 
-		// Hide/Show all with rules
+		// Hide/Show all with rules.
 		var hide_classes = '.hide_if_downloadable, .hide_if_virtual';
 		var show_classes = '.show_if_downloadable, .show_if_virtual';
 
@@ -141,7 +141,7 @@ jQuery( function( $ ) {
 		$( hide_classes ).show();
 		$( show_classes ).hide();
 
-		// Shows rules
+		// Shows rules.
 		if ( is_downloadable ) {
 			$( '.show_if_downloadable' ).show();
 		}
@@ -151,7 +151,7 @@ jQuery( function( $ ) {
 
         $( '.show_if_' + product_type ).show();
 
-		// Hide rules
+		// Hide rules.
 		if ( is_downloadable ) {
 			$( '.hide_if_downloadable' ).hide();
 		}
@@ -163,7 +163,7 @@ jQuery( function( $ ) {
 
 		$( 'input#_manage_stock' ).change();
 
-		// Hide empty panels/tabs after display
+		// Hide empty panels/tabs after display.
 		$( '.woocommerce_options_panel' ).each( function() {
 			var $children = $( this ).children( '.options_group' );
 
@@ -171,24 +171,26 @@ jQuery( function( $ ) {
 				return;
 			}
 
-			var $invisble = $children.filter( function() { return 'none' === $( this ).css( 'display' ); } );
+			var $invisble = $children.filter( function() {
+				return 'none' === $( this ).css( 'display' );
+			});
 
-			// Hide panel
+			// Hide panel.
 			if ( $invisble.length === $children.length ) {
 				var $id = $( this ).prop( 'id' );
 				$( '.product_data_tabs' ).find( 'li a[href="#' + $id + '"]' ).parent().hide();
 			}
-		} );
+		});
 	}
 
-	// Sale price schedule
+	// Sale price schedule.
 	$( '.sale_price_dates_fields' ).each( function() {
 		var $these_sale_dates = $( this );
 		var sale_schedule_set = false;
 		var $wrap = $these_sale_dates.closest( 'div, table' );
 
 		$these_sale_dates.find( 'input' ).each( function() {
-			if ( $( this ).val() !== '' ) {
+			if ( '' !== $( this ).val() ) {
 				sale_schedule_set = true;
 			}
 		});
@@ -222,7 +224,7 @@ jQuery( function( $ ) {
 		return false;
 	});
 
-	// File inputs
+	// File inputs.
 	$( '#woocommerce-product-data' ).on( 'click','.downloadable_files a.insert', function() {
 		$( this ).closest( '.downloadable_files' ).find( 'tbody' ).append( $( this ).data( 'row' ) );
 		return false;
@@ -232,7 +234,7 @@ jQuery( function( $ ) {
 		return false;
 	});
 
-	// STOCK OPTIONS
+	// STOCK OPTIONS.
 	$( 'input#_manage_stock' ).change( function() {
 		if ( $( this ).is( ':checked' ) ) {
 			$( 'div.stock_fields' ).show();
@@ -241,7 +243,7 @@ jQuery( function( $ ) {
 		}
 	}).change();
 
-	// DATE PICKER FIELDS
+	// DATE PICKER FIELDS.
 	$( '.sale_price_dates_fields' ).each( function() {
 		var dates = $( this ).find( 'input' ).datepicker({
 			defaultDate: '',
@@ -257,18 +259,18 @@ jQuery( function( $ ) {
 		});
 	});
 
-	// ATTRIBUTE TABLES
+	// ATTRIBUTE TABLES.
 
-	// Initial order
-	var woocommerce_attribute_items = $('.product_attributes').find('.woocommerce_attribute').get();
+	// Initial order.
+	var woocommerce_attribute_items = $( '.product_attributes' ).find( '.woocommerce_attribute' ).get();
 
-	woocommerce_attribute_items.sort(function(a, b) {
+	woocommerce_attribute_items.sort( function( a, b ) {
 	   var compA = parseInt( $( a ).attr( 'rel' ), 10 );
 	   var compB = parseInt( $( b ).attr( 'rel' ), 10 );
-	   return (compA < compB) ? -1 : (compA > compB) ? 1 : 0;
+	   return ( compA < compB ) ? -1 : ( compA > compB ) ? 1 : 0;
 	});
-	$( woocommerce_attribute_items ).each( function( idx, itm ) {
-		$( '.product_attributes' ).append(itm);
+	$( woocommerce_attribute_items ).each( function( index, el ) {
+		$( '.product_attributes' ).append( el );
 	});
 
 	function attribute_row_indexes() {
@@ -283,7 +285,7 @@ jQuery( function( $ ) {
 		}
 	});
 
-	// Add rows
+	// Add rows.
 	$( 'button.add_attribute' ).on( 'click', function() {
 		var size         = $( '.product_attributes .woocommerce_attribute' ).length;
 		var attribute    = $( 'select.attribute_taxonomy' ).val();
@@ -308,7 +310,7 @@ jQuery( function( $ ) {
 		$.post( woocommerce_admin_meta_boxes.ajax_url, data, function( response ) {
 			$attributes.append( response );
 
-			if ( product_type !== 'variable' ) {
+			if ( 'variable' !== product_type ) {
 				$attributes.find( '.enable_variation' ).hide();
 			}
 
@@ -339,7 +341,7 @@ jQuery( function( $ ) {
 
 	$( '.product_attributes' ).on( 'click', 'button.select_no_attributes', function() {
 		$( this ).closest( 'td' ).find( 'select option' ).removeAttr( 'selected' );
-		$( this ).closest( 'td' ).find( 'select').change();
+		$( this ).closest( 'td' ).find( 'select' ).change();
 		return false;
 	});
 
@@ -348,11 +350,11 @@ jQuery( function( $ ) {
 			var $parent = $( this ).parent().parent();
 
 			if ( $parent.is( '.taxonomy' ) ) {
-				$parent.find( 'select, input[type=text]' ).val('');
+				$parent.find( 'select, input[type=text]' ).val( '' );
 				$parent.hide();
 				$( 'select.attribute_taxonomy' ).find( 'option[value="' + $parent.data( 'taxonomy' ) + '"]' ).removeAttr( 'disabled' );
 			} else {
-				$parent.find( 'select, input[type=text]' ).val('');
+				$parent.find( 'select, input[type=text]' ).val( '' );
 				$parent.hide();
 				attribute_row_indexes();
 			}
@@ -360,7 +362,7 @@ jQuery( function( $ ) {
 		return false;
 	});
 
-	// Attribute ordering
+	// Attribute ordering.
 	$( '.product_attributes' ).sortable({
 		items: '.woocommerce_attribute',
 		cursor: 'move',
@@ -380,10 +382,16 @@ jQuery( function( $ ) {
 		}
 	});
 
-	// Add a new attribute (via ajax)
+	// Add a new attribute (via ajax).
 	$( '.product_attributes' ).on( 'click', 'button.add_new_attribute', function() {
 
-		$( '.product_attributes' ).block({ message: null, overlayCSS: { background: '#fff', opacity: 0.6 } });
+		$( '.product_attributes' ).block({
+			message: null,
+			overlayCSS: {
+				background: '#fff',
+				opacity: 0.6
+			}
+		});
 
 		var $wrapper           = $( this ).closest( '.woocommerce_attribute' );
 		var attribute          = $wrapper.data( 'taxonomy' );
@@ -401,10 +409,10 @@ jQuery( function( $ ) {
 			$.post( woocommerce_admin_meta_boxes.ajax_url, data, function( response ) {
 
 				if ( response.error ) {
-					// Error
+					// Error.
 					window.alert( response.error );
 				} else if ( response.slug ) {
-					// Success
+					// Success.
 					$wrapper.find( 'select.attribute_values' ).append( '<option value="' + response.slug + '" selected="selected">' + response.name + '</option>' );
 					$wrapper.find( 'select.attribute_values' ).change();
 				}
@@ -419,7 +427,7 @@ jQuery( function( $ ) {
 		return false;
 	});
 
-	// Save attributes and update variations
+	// Save attributes and update variations.
 	$( '.save_attributes' ).on( 'click', function() {
 
 		$( '#woocommerce-product-data' ).block({
@@ -438,22 +446,22 @@ jQuery( function( $ ) {
 		};
 
 		$.post( woocommerce_admin_meta_boxes.ajax_url, data, function() {
-			// Reload variations panel
+			// Reload variations panel.
 			var this_page = window.location.toString();
 			this_page = this_page.replace( 'post-new.php?', 'post.php?post=' + woocommerce_admin_meta_boxes.post_id + '&action=edit&' );
 
-			// Load variations panel
+			// Load variations panel.
 			$( '#variable_product_options' ).load( this_page + ' #variable_product_options_inner', function() {
 				$( '#variable_product_options' ).trigger( 'reload' );
 			});
 		});
 	});
 
-	// Uploading files
+	// Uploading files.
 	var downloadable_file_frame;
 	var file_path_field;
 
-	jQuery( document.body ).on( 'click', '.upload_file_button', function( event ) {
+	$( document.body ).on( 'click', '.upload_file_button', function( event ) {
 		var $el = $( this );
 
 		file_path_field = $el.closest( 'tr' ).find( 'td.file_url input' );
@@ -506,7 +514,7 @@ jQuery( function( $ ) {
 			file_path_field.val( file_path ).change();
 		});
 
-		// Set post to 0 and set our custom type
+		// Set post to 0 and set our custom type.
 		downloadable_file_frame.on( 'ready', function() {
 			downloadable_file_frame.uploader.options.uploader.params = {
 				type: 'downloadable_product'
@@ -517,8 +525,8 @@ jQuery( function( $ ) {
 		downloadable_file_frame.open();
 	});
 
-	// Download ordering
-	jQuery( '.downloadable_files tbody' ).sortable({
+	// Download ordering.
+	$( '.downloadable_files tbody' ).sortable({
 		items: 'tr',
 		cursor: 'move',
 		axis: 'y',
@@ -529,12 +537,12 @@ jQuery( function( $ ) {
 		opacity: 0.65
 	});
 
-	// Product gallery file uploads
+	// Product gallery file uploads.
 	var product_gallery_frame;
 	var $image_gallery_ids = $( '#product_image_gallery' );
 	var $product_images    = $( '#product_images_container' ).find( 'ul.product_images' );
 
-	jQuery( '.add_product_images' ).on( 'click', 'a', function( event ) {
+	$( '.add_product_images' ).on( 'click', 'a', function( event ) {
 		var $el = $( this );
 
 		event.preventDefault();
@@ -584,7 +592,7 @@ jQuery( function( $ ) {
 		product_gallery_frame.open();
 	});
 
-	// Image ordering
+	// Image ordering.
 	$product_images.sortable({
 		items: 'li.image',
 		cursor: 'move',
@@ -604,7 +612,7 @@ jQuery( function( $ ) {
 			var attachment_ids = '';
 
 			$( '#product_images_container' ).find( 'ul li.image' ).css( 'cursor', 'default' ).each( function() {
-				var attachment_id = jQuery( this ).attr( 'data-attachment_id' );
+				var attachment_id = $( this ).attr( 'data-attachment_id' );
 				attachment_ids = attachment_ids + attachment_id + ',';
 			});
 
@@ -612,20 +620,20 @@ jQuery( function( $ ) {
 		}
 	});
 
-	// Remove images
+	// Remove images.
 	$( '#product_images_container' ).on( 'click', 'a.delete', function() {
 		$( this ).closest( 'li.image' ).remove();
 
 		var attachment_ids = '';
 
 		$( '#product_images_container' ).find( 'ul li.image' ).css( 'cursor', 'default' ).each( function() {
-			var attachment_id = jQuery( this ).attr( 'data-attachment_id' );
+			var attachment_id = $( this ).attr( 'data-attachment_id' );
 			attachment_ids = attachment_ids + attachment_id + ',';
 		});
 
 		$image_gallery_ids.val( attachment_ids );
 
-		// remove any lingering tooltips
+		// Remove any lingering tooltips.
 		$( '#tiptip_holder' ).removeAttr( 'style' );
 		$( '#tiptip_arrow' ).removeAttr( 'style' );