A polyfill built upon atob/btoa (browser side only) so as to support base64 to/from binary (Uint8Array/ArrayBuffer) conversion
npm install base64-binaryA polyfill built upon atob/btoa (browser) so as to support base64 to/from binary (Uint8Array/ArrayBuffer) conversion
It seems that the built-in atob and btoa functions don't support encoding binary (Uint8Array or ArrayBuffer) to base64 string and decoding base64 string to binary directly. However, with the help of this polyfill which adds a thin layer to make extra conversion between String and Uint8Array, we can make it by standing on the shoulders of giants.
Add reference in your HTML file
``html`
...
...
Now you can make base64 codec for binary data
`js``
const bin = base64.decode("hzw4NdSJ0NzaEKo9hSKiH+X5ViFAh+hmYDuorCqDjEk=");
console.log(base64.encode(bin));