diff --git a/src/utils/index.ts b/src/utils/index.ts
index 72b5b0a196878fad75c56683470e6cf202706065..0d6266087d60dcd5b3ff399a9f9f994e59cf1786 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -1,31 +1,31 @@
 /**
  * Check if an element has a class
- * @param {HTMLElement} elm
+ * @param {HTMLElement} ele
  * @param {string} cls
  * @returns {boolean}
  */
 export function hasClass(ele: HTMLElement, cls: string) {
-  return !!ele.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'));
+  return !!ele.className.match(new RegExp("(\\s|^)" + cls + "(\\s|$)"));
 }
 
 /**
  * Add class to element
- * @param {HTMLElement} elm
+ * @param {HTMLElement} ele
  * @param {string} cls
  */
 export function addClass(ele: HTMLElement, cls: string) {
-  if (!hasClass(ele, cls)) ele.className += ' ' + cls;
+  if (!hasClass(ele, cls)) ele.className += " " + cls;
 }
 
 /**
  * Remove class from element
- * @param {HTMLElement} elm
+ * @param {HTMLElement} ele
  * @param {string} cls
  */
 export function removeClass(ele: HTMLElement, cls: string) {
   if (hasClass(ele, cls)) {
-    const reg = new RegExp('(\\s|^)' + cls + '(\\s|$)');
-    ele.className = ele.className.replace(reg, ' ');
+    const reg = new RegExp("(\\s|^)" + cls + "(\\s|$)");
+    ele.className = ele.className.replace(reg, " ");
   }
 }