1 files changed, 5 insertions, 0 deletions

diff --git a/src/utils.mjs b/src/utils.mjs
index c9a2457..ffd8978 100644
--- a/src/utils.mjs
+++ b/src/utils.mjs
@@ -88,6 +88,11 @@ export function throttle (func, delay) {
   }
 }
 
+/**
+ * shiftByWindow. make sure HTMLElement inside viewport
+ *
+ * @param {HTMLElement} element
+ */
 export const shiftByWindow = element => {
   const rect = element.getBoundingClientRect()
   const offsetX = window.innerWidth - rect.left - rect.width