method Buffer.readBigUInt64BE
Usage in Deno
```typescript import { type Buffer } from "node:node__buffer.d.ts"; ```
Buffer.readBigUInt64BE(offset?: number): bigint
Reads an unsigned, big-endian 64-bit integer from `buf` at the specified`offset`.
This function is also available under the `readBigUint64BE` alias.
```js
import { Buffer } from 'node:buffer';
const buf = Buffer.from([0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff]);
console.log(buf.readBigUInt64BE(0));
// Prints: 4294967295n
```
bigint