buf.readDoubleLE([offset])


  • 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
  • 返回: <number>

从指定 offset 处的 buf 读取 64 位小端序双精度值。

const buf = Buffer.from([1, 2, 3, 4, 5, 6, 7, 8]);

console.log(buf.readDoubleLE(0));
// 打印: 5.447603722011605e-270
console.log(buf.readDoubleLE(1));
// 抛出 ERR_OUT_OF_RANGE。
  • offset <integer> Number of bytes to skip before starting to read. Must satisfy 0 <= offset <= buf.length - 8. Default: 0.
  • Returns: <number>

Reads a 64-bit, little-endian double from buf at the specified offset.

const buf = Buffer.from([1, 2, 3, 4, 5, 6, 7, 8]);

console.log(buf.readDoubleLE(0));
// Prints: 5.447603722011605e-270
console.log(buf.readDoubleLE(1));
// Throws ERR_OUT_OF_RANGE.