buf.swap32()

• 返回: <Buffer> buf 的引用。

将 buf 解释为无符号 32 位整数数组，并就地交换字节顺序。 如果 buf.length 不是 4 的倍数，则抛出 ERR_INVALID_BUFFER_SIZE。

const buf1 = Buffer.from([0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8]);

console.log(buf1);
// 打印: <Buffer 01 02 03 04 05 06 07 08>

buf1.swap32();

console.log(buf1);
// 打印: <Buffer 04 03 02 01 08 07 06 05>

const buf2 = Buffer.from([0x1, 0x2, 0x3]);

buf2.swap32();
// 抛出 ERR_INVALID_BUFFER_SIZE。

• Returns: <Buffer> A reference to buf.

Interprets buf as an array of unsigned 32-bit integers and swaps the byte order in-place. Throws ERR_INVALID_BUFFER_SIZE if buf.length is not a multiple of 4.

const buf1 = Buffer.from([0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8]);

console.log(buf1);
// Prints: <Buffer 01 02 03 04 05 06 07 08>

buf1.swap32();

console.log(buf1);
// Prints: <Buffer 04 03 02 01 08 07 06 05>

const buf2 = Buffer.from([0x1, 0x2, 0x3]);

buf2.swap32();
// Throws ERR_INVALID_BUFFER_SIZE.