A [ponyfill](https://ponyfill.com) for `Buffer.from`, uses native implementation if available.
npm install buffer-fromA ponyfill for Buffer.from, uses native implementation if available.
``sh`
npm install --save buffer-from
`js
const bufferFrom = require('buffer-from')
console.log(bufferFrom([1, 2, 3, 4]))
//=>
const arr = new Uint8Array([1, 2, 3, 4])
console.log(bufferFrom(arr.buffer, 1, 2))
//=>
console.log(bufferFrom('test', 'utf8'))
//=>
const buf = bufferFrom('test')
console.log(bufferFrom(buf))
//=>
`
- array <Array>
Allocates a new Buffer using an array of octets.
- arrayBuffer <ArrayBuffer> The .buffer property of a TypedArray or ArrayBufferbyteOffset
- <Integer> Where to start copying from arrayBuffer. Default: 0length
- <Integer> How many bytes to copy from arrayBuffer. Default: arrayBuffer.length - byteOffset
When passed a reference to the .buffer property of a TypedArray instance, theBuffer
newly created will share the same allocated memory as the TypedArray.
The optional byteOffset and length arguments specify a memory range withinarrayBuffer
the that will be shared by the Buffer.
- buffer <Buffer> An existing Buffer to copy data from
Copies the passed buffer data onto a new Buffer instance.
- string <String> A string to encode.encoding
- <String> The encoding of string. Default: 'utf8'
Creates a new Buffer containing the given JavaScript string string. Ifencoding
provided, the parameter identifies the character encoding ofstring.
- buffer-alloc A ponyfill for Buffer.allocBuffer.allocUnsafe`
- buffer-alloc-unsafe A ponyfill for