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| [6a3a178] | 1 | base64-js
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| 2 | =========
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| 3 |
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| 4 | `base64-js` does basic base64 encoding/decoding in pure JS.
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| 5 |
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| 6 | [](http://travis-ci.org/beatgammit/base64-js)
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| 7 |
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| 8 | Many browsers already have base64 encoding/decoding functionality, but it is for text data, not all-purpose binary data.
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| 9 |
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| 10 | Sometimes encoding/decoding binary data in the browser is useful, and that is what this module does.
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| 11 |
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| 12 | ## install
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| 13 |
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| 14 | With [npm](https://npmjs.org) do:
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| 15 |
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| 16 | `npm install base64-js` and `var base64js = require('base64-js')`
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| 17 |
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| 18 | For use in web browsers do:
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| 19 |
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| 20 | `<script src="base64js.min.js"></script>`
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| 21 |
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| 22 | [Get supported base64-js with the Tidelift Subscription](https://tidelift.com/subscription/pkg/npm-base64-js?utm_source=npm-base64-js&utm_medium=referral&utm_campaign=readme)
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| 23 |
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| 24 | ## methods
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| 25 |
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| 26 | `base64js` has three exposed functions, `byteLength`, `toByteArray` and `fromByteArray`, which both take a single argument.
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| 27 |
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| 28 | * `byteLength` - Takes a base64 string and returns length of byte array
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| 29 | * `toByteArray` - Takes a base64 string and returns a byte array
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| 30 | * `fromByteArray` - Takes a byte array and returns a base64 string
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| 31 |
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| 32 | ## license
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| 33 |
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| 34 | MIT
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