--- title: Check if bottom of page is visible type: snippet language: javascript tags: [browser] cover: red-mountain dateModified: 2020-10-22T20:23:47+03:00 --- Checks if the bottom of the page is visible. - Use `Window.scrollY`, `Element.scrollHeight` and `Element.clientHeight` to determine if the bottom of the page is visible. ```js const bottomVisible = () => document.documentElement.clientHeight + window.scrollY >= (document.documentElement.scrollHeight || document.documentElement.clientHeight); ``` ```js bottomVisible(); // true ```