---
url: /process-functions/datasource-btoa.md
description: Converts a given byte array or string into a base64 encoded string.
---

# datasource.btoa 

Converts a given byte array or string into a base64 encoded string. This function is made to mimic the functionality of javascripts btoa function.

```js
datasource.btoa(value)
```

#### Parameters

* `value` (string or array): The byte array or string you want to encode.

#### Returns

* `string`: A base64 encoded string representation of the provided value.

#### Examples

```js
var encoded = datasource.btoa("Hello World");
// encoded would be SGVsbG8gV29ybGQ= in this example.
```