installed plugin Easy Digital Downloads version 3.1.0.3

wp-content/plugins/easy-digital-downloads/assets/js/utils/chosen.js

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+/* global jQuery, edd_vars */
+
+export const chosenVars = {
+	disable_search_threshold: 13,
+	search_contains: true,
+	inherit_select_classes: true,
+	single_backstroke_delete: false,
+	placeholder_text_single: edd_vars.one_option,
+	placeholder_text_multiple: edd_vars.one_or_more_option,
+	no_results_text: edd_vars.no_results_text,
+};
+
+/**
+ * Determine the variables used to initialie Chosen on an element.
+ *
+ * @param {Object} el select element.
+ * @return {Object} Variables for Chosen.
+ */
+export const getChosenVars = ( el ) => {
+	if ( ! el instanceof jQuery ) {
+		el = jQuery( el );
+	}
+
+	let inputVars = chosenVars;
+
+	// Ensure <select data-search-type="download"> or similar can use search always.
+	// These types of fields start with no options and are updated via AJAX.
+	if ( el.data( 'search-type' ) ) {
+		delete inputVars.disable_search_threshold;
+	}
+
+	return {
+		...inputVars,
+		width: el.css( 'width' ),
+	};
+}

wp-content/plugins/easy-digital-downloads/assets/js/utils/jquery.js

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+/* global jQuery */
+
+/**
+ * Safe wrapper for jQuery DOM ready.
+ *
+ * This should be used only when a script requires the use of jQuery.
+ *
+ * @param {Function} callback Function to call when ready.
+ */
+export const jQueryReady = function( callback ) {
+	( function( $ ) {
+		$( callback );
+	}( jQuery ) );
+};