Buffer | /ext/node/polyfills/buffer.ts | deno@v1.39.0

A modern runtime for JavaScript and TypeScript.

method Buffer.prototype.readBigUInt64BE

import { Buffer } from "https://deno.land/x/deno@v1.39.0/ext/node/polyfills/buffer.ts";

readBigUInt64BE(offset?: number): bigint

Reads an unsigned, big-endian 64-bit integer from buf at the specifiedoffset.

This function is also available under the readBigUint64BE alias.

import { Buffer } from "ext:deno_node/internal/buffer";

const buf = Buffer.from([0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff]);

console.log(buf.readBigUInt64BE(0));
// Prints: 4294967295n

Parameters

offset: number

Number of bytes to skip before starting to read. Must satisfy: 0 <= offset <= buf.length - 8.

Returns