How to Save & Restore Scroll Position in JavaScript (localStorage Tutorial)
In this JavaScript tutorial, you’ll learn how to save and restore the scroll position of a webpage using localStorage. This is super useful for long pages like blogs, dashboards, or any site where users should return to the same spot after a page reload.
⚠ Correction: At 01:58 in the video, the if (scrollY !== null) check is incorrect. It should be if (savedY !== null) — otherwise it always runs and may cause issues when savedY is null. Note scrollY is always a positive number as it is a property of window object, so code seems to work correctly even though its working by chance.
You’ll learn how to:
Track scroll position using window.scrollY
Save it to localStorage with setItem
Restore it on window.load using scrollTo()
💡 Technologies used:
JavaScript DOM Events
scrollY and scrollTo()
localStorage API
#JavaScript #localStorage #ScrollPosition #WebDev #Frontend
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