buf.readBigUInt64LE([offset])

版本历史
版本变更
v14.10.0, v12.19.0

此函数也可用作 buf.readBigUint64LE()。

v12.0.0, v10.20.0

新增于: v12.0.0, v10.20.0

  • offset <integer> 开始读取之前要跳过的字节数。必须满足：0 <= offset <= buf.length - 8。默认值：0。

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

  • 返回：<bigint>

    ¥Returns: <bigint>

从指定的 offset 处的 buf 读取无符号的小端序 64 位整数。

¥Reads an unsigned, little-endian 64-bit integer from buf at the specified offset.

此函数也可在 readBigUint64LE 别名下使用。

¥This function is also available under the readBigUint64LE alias.

import { Buffer } from 'node:buffer';

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

console.log(buf.readBigUInt64LE(0));
// Prints: 18446744069414584320nconst { Buffer } = require('node:buffer');

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

console.log(buf.readBigUInt64LE(0));
// Prints: 18446744069414584320n