buf.buffer

• 类型：<ArrayBuffer> 创建此 Buffer 对象所基于的底层 ArrayBuffer 对象。

此 ArrayBuffer 并不能保证与原始 Buffer 完全对应。有关详细信息，请参阅 buf.byteOffset 的说明。

【This ArrayBuffer is not guaranteed to correspond exactly to the original Buffer. See the notes on buf.byteOffset for details.】

import { Buffer } from 'node:buffer';

const arrayBuffer = new ArrayBuffer(16);
const buffer = Buffer.from(arrayBuffer);

console.log(buffer.buffer === arrayBuffer);
// Prints: trueconst { Buffer } = require('node:buffer');

const arrayBuffer = new ArrayBuffer(16);
const buffer = Buffer.from(arrayBuffer);

console.log(buffer.buffer === arrayBuffer);
// Prints: true拷贝