getFloat64 method Null safety

double getFloat64 (
  1. int byteOffset,
  2. [Endian endian = Endian.big]

Returns the floating point number represented by the eight bytes at the specified byteOffset in this object, in IEEE 754 double-precision binary floating-point format (binary64).

Throws RangeError if byteOffset is negative, or byteOffset + 8 is greater than the length of this object.


double getFloat64(int byteOffset, [Endian endian = Endian.big]);