buf.readDoubleLE([offset])


    从指定 offset 处的 buf 读取 64 位小端序双精度值。

    • 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.