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javascript/snippets/atob.md

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+---
+title: Decode Base64 encoded string
+type: snippet
+tags: [node,string]
+cover: thread
+dateModified: 2020-09-15T16:28:04+03:00
+---
+
+Decodes a string of data which has been encoded using base-64 encoding.
+
+- Create a `Buffer` for the given string with base-64 encoding.
+- Use `Buffer.prototype.toString()` to return the decoded string.
+
+```js
+const atob = str => Buffer.from(str, 'base64').toString('binary');
+```
+
+```js
+atob('Zm9vYmFy'); // 'foobar'
+```