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javascript/snippets/get-scrollbar-width.md

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+---
+title: Scrollbar width
+type: snippet
+tags: [browser]
+cover: violin
+author: chalarangelo
+dateModified: 2022-07-16T05:00:00-04:00
+---
+
+Calculates the width of the window's vertical scrollbar.
+
+
+- Use `Window.innerWidth` to get the interior width of the window.
+- Use `Element.clientWidth` to get the inner width of the `Document` element.
+- Subtract the two values to get the width of the vertical scrollbar.
+
+```js
+const getScrollbarWidth = () =>
+  window.innerWidth - document.documentElement.clientWidth;
+```
+
+```js
+getScrollbarWidth(); // 15
+```