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snippets/js/s/byte-size.md

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+---
+title: Byte size of string
+type: snippet
+language: javascript
+tags: [string]
+cover: mountain-lake-cottage-2
+dateModified: 2020-10-18T23:04:45+03:00
+---
+
+Returns the length of a string in bytes.
+
+- Convert a given string to a [`Blob` Object](https://developer.mozilla.org/en-US/docs/Web/API/Blob).
+- Use `Blob.size` to get the length of the string in bytes.
+
+```js
+const byteSize = str => new Blob([str]).size;
+```
+
+```js
+byteSize('😀'); // 4
+byteSize('Hello World'); // 11
+```