buf.writeIntLE(value, offset, byteLength)
value
<integer> 要写入buf
的数字。offset
<integer> 开始写入之前要跳过的字节数。 必须满足0 <= offset <= buf.length - byteLength
。byteLength
<integer> 要写入的字节数。 必须满足0 < byteLength <= 6
。- 返回: <integer>
offset
加上写入的字节数。
将 value
的 byteLength
个字节作为小端序写入 buf
中指定的 offset
。
支持最高 48 位的精度。
当 value
不是有符号整数时,则行为未定义。
const buf = Buffer.allocUnsafe(6);
buf.writeIntLE(0x1234567890ab, 0, 6);
console.log(buf);
// 打印: <Buffer ab 90 78 56 34 12>
value
<integer> Number to be written tobuf
.offset
<integer> Number of bytes to skip before starting to write. Must satisfy0 <= offset <= buf.length - byteLength
.byteLength
<integer> Number of bytes to write. Must satisfy0 < byteLength <= 6
.- Returns: <integer>
offset
plus the number of bytes written.
Writes byteLength
bytes of value
to buf
at the specified offset
as little-endian. Supports up to 48 bits of accuracy. Behavior is undefined
when value
is anything other than a signed integer.
const buf = Buffer.allocUnsafe(6);
buf.writeIntLE(0x1234567890ab, 0, 6);
console.log(buf);
// Prints: <Buffer ab 90 78 56 34 12>