buf.writeUInt32LE(value[, offset])


  • value <integer> 要写入 buf 的数字。
  • offset <integer> 写入前要跳过的字节数。必须满足 0 <= offset <= buf.length - 4默认值: 0
  • 返回:<integer> offset 加上写入的字节数。

value 以小端格式写入指定 offsetbufvalue 必须是有效的无符号 32 位整数。当 value 不是无符号 32 位整数时,行为未定义。

【Writes value to buf at the specified offset as little-endian. The value must be a valid unsigned 32-bit integer. Behavior is undefined when value is anything other than an unsigned 32-bit integer.】

这个函数也可以通过 writeUint32LE 别名使用。

【This function is also available under the writeUint32LE alias.】

import { Buffer } from 'node:buffer';

const buf = Buffer.allocUnsafe(4);

buf.writeUInt32LE(0xfeedface, 0);

console.log(buf);
// Prints: <Buffer ce fa ed fe>const { Buffer } = require('node:buffer');

const buf = Buffer.allocUnsafe(4);

buf.writeUInt32LE(0xfeedface, 0);

console.log(buf);
// Prints: <Buffer ce fa ed fe>