fix(util): added optional offset parameter

Author: raphaelamadeu-zz

packages/react/src/patterns/sub-patterns/TableOfContents/TOCMobile.js

@@ -45,7 +45,7 @@ const TOCMobile = ({ menuItems, selectedId, menuLabel, updateState }) => {
     const title = filteredItems[0].title;
     updateState(id, title);
     const selector = `a[name="${id}"]`;
-    smoothScroll(null, selector);
+    smoothScroll(null, selector, 50);
   };
 
   /**

packages/utilities/src/utilities/smoothScroll/smoothScroll.js

@@ -19,9 +19,10 @@
  *
  * @param {*} e event object
  * @param {*} selector menu item selector id
+ * @param {number} offset top offset for the scroll
  * @returns {null} Returns null if no scroll is needed
  */
-const smoothScroll = (e, selector) => {
+const smoothScroll = (e, selector, offset = 0) => {
   let getSelector;
   if (e !== null) {
     e.preventDefault();
@@ -35,7 +36,7 @@ const smoothScroll = (e, selector) => {
   window.scroll({
     top:
       document.querySelector(getSelector).getBoundingClientRect().top -
-      50 +
+      offset +
       window.scrollY,
     behavior: 'smooth',
   });