diff --git a/umap/static/umap/js/modules/utils.js b/umap/static/umap/js/modules/utils.js
index 64dead17..125945ee 100644
--- a/umap/static/umap/js/modules/utils.js
+++ b/umap/static/umap/js/modules/utils.js
@@ -200,6 +200,19 @@ export function usableOption(options, option) {
   return options[option] !== undefined && options[option] !== ''
 }
 
+/**
+ * Processes a template string by replacing placeholders with corresponding
+ * data values.
+ *
+ * Supports dot notation for nested objects and optional static fallbacks.
+ * If a value is not found, the placeholder is replaced with an empty string
+ * or left unchanged when 'ignore' is true.
+ *
+ * @param {string} str - The template string with placeholders.
+ * @param {Object} data - The data object from which to pull replacement values.
+ * @param {boolean} [ignore=false] - If true, leaves placeholders unchanged when no value is found.
+ * @returns {string} The processed string with placeholders replaced.
+ */
 export function greedyTemplate(str, data, ignore) {
   function getValue(data, path) {
     let value = data
@@ -310,6 +323,16 @@ export function isDataImage(value) {
   return value && value.length && value.startsWith('data:image')
 }
 
+/**
+ * Normalizes the input string by converting to lowercase
+ * and removing diacritics.
+ *
+ * If the input is nullish, it defaults to an empty string.
+ *
+ * @param {string} s - The string to be normalized.
+ * @returns {string} - The normalized string with lowercase
+ *                     characters and no diacritics.
+ */
 export function normalize(s) {
   return (s || '')
     .toLowerCase()
diff --git a/umap/static/umap/js/umap.autocomplete.js b/umap/static/umap/js/umap.autocomplete.js
index c63679e1..3da1bdeb 100644
--- a/umap/static/umap/js/umap.autocomplete.js
+++ b/umap/static/umap/js/umap.autocomplete.js
@@ -153,7 +153,7 @@ U.AutoComplete = L.Class.extend({
       this.displaySelected(choice)
       this.hide()
       if (this.options.callback) {
-        U.Utils.bind(this.options.callback, this)(choice)
+        L.Util.bind(this.options.callback, this)(choice)
       }
     }
   },
diff --git a/umap/static/umap/js/umap.core.js b/umap/static/umap/js/umap.core.js
index 58acb343..2c8da683 100644
--- a/umap/static/umap/js/umap.core.js
+++ b/umap/static/umap/js/umap.core.js
@@ -128,7 +128,7 @@ L.DomUtil.createCopiableInput = (parent, label, value) => {
     '',
     wrapper,
     '',
-    () => U.Utils.copyToClipboard(input.value),
+    () => L.Util.copyToClipboard(input.value),
     this
   )
   button.title = L._('copy')
diff --git a/umap/static/umap/js/umap.js b/umap/static/umap/js/umap.js
index 7aa515f9..132b773e 100644
--- a/umap/static/umap/js/umap.js
+++ b/umap/static/umap/js/umap.js
@@ -1032,7 +1032,7 @@ U.Map = L.Map.extend({
             {
               label: L._('Copy link'),
               callback: () => {
-                U.Utils.copyToClipboard(data.permissions.anonymous_edit_url)
+                L.Util.copyToClipboard(data.permissions.anonymous_edit_url)
                 this.ui.alert({
                   content: L._('Secret edit link copied to clipboard!'),
                   level: 'info',
diff --git a/umap/static/umap/js/umap.layer.js b/umap/static/umap/js/umap.layer.js
index 02c92d40..21ae6189 100644
--- a/umap/static/umap/js/umap.layer.js
+++ b/umap/static/umap/js/umap.layer.js
@@ -760,7 +760,7 @@ U.DataLayer = L.Evented.extend({
     U.Utils.sortFeatures(features, this.map.getOption('sortKey'), L.lang)
     this._index = []
     for (let i = 0; i < features.length; i++) {
-      this._index.push(U.Utils.stamp(features[i]))
+      this._index.push(L.Util.stamp(features[i]))
     }
   },