Why am I getting an "Uncaught DOM Exception" in the Deno CLI?

To replicate:
1. denodeno in the command line to initialize a Deno REPL

// Get an array of random bytes
const arr = new Uint8Array(32)
crypto.getRandomValues(arr)

const decoder = new TextDecoder("utf8")
btoa(decoder.decode(arr));
> Uncaught DOMException

// Get an array of random bytes
const arr = new Uint8Array(32)
crypto.getRandomValues(arr)

const decoder = new TextDecoder("utf8")
btoa(decoder.decode(arr));
> Uncaught DOMException

The goal was to get a base64 encoding of the byte array. What am I doing wrong? atobatob produces the same result.

Deno•4y ago•

1 reply

Captain 𝗕𝗘𝗘𝗙🥩

Why am I getting an "Uncaught DOM Exception" in the Deno CLI?

To replicate:
1. denodeno in the command line to initialize a Deno REPL

// Get an array of random bytes
const arr = new Uint8Array(32)
crypto.getRandomValues(arr)

const decoder = new TextDecoder("utf8")
btoa(decoder.decode(arr));
> Uncaught DOMException

// Get an array of random bytes
const arr = new Uint8Array(32)
crypto.getRandomValues(arr)

const decoder = new TextDecoder("utf8")
btoa(decoder.decode(arr));
> Uncaught DOMException

The goal was to get a base64 encoding of the byte array. What am I doing wrong? atobatob produces the same result.

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Why am I getting an "Uncaught DOM Exception" in the Deno CLI?

Why am I getting an "Uncaught DOM Exception" in the Deno CLI?

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