to-uint8array

Convert anything to Uint8Array without a copy

Like typedarray-to-buffer but returns pure Uint8Array instead.

• Do not require node:buffer to do so.
• Best for cross platform coding (Deno, Node, Browser)
• node:buffer (or anything else that extens Uint8Array) gets degraded to plain Uint8Array
• Same ArrayBuffer is used, no copies will occur

Anything that isn't a ArrayBuffer or ArrayBufferView is casted to String and then converted to Uint8Array by TextEncoder().encode(whatever) (that's how webidl conversion stuff works)

One last thing: It only supports ESM, So you can import this easily with any CDN. Still using commonjs? Switch to ESM also! Or use the async import() syntax.

Example

import toUint8 from 'to-uint8array'

const buffer = Buffer.from('abc')
const u8 = new Uint8Array([97])
const u16 = new Uint16Array([0, 1, 2])
const ab = new ArrayBuffer(3)

toUint8(u16) // Uint8Array(6) [ 0, 0, 1, 0, 2, 0 ]
toUint8(ab) // Uint8Array(3) [ 0, 0, 0 ]
toUint8('abc') // Uint8Array(3) [ 97, 98, 99 ]
toUint8(buffer) // Uint8Array(3) [ 97, 98, 99 ]

toUint8(u8) === u8 // true
toUint8(u16) === u16 // false
toUint8(ab).buffer === ab // true
toUint8(u16).buffer === u16.buffer // true
toUint8(buffer) instanceof Uint8Array // true
toUint8(buffer) instanceof Buffer // false