Return the exponent field of the specified value.
Return an integer equal to the exponent field in the specified value. Each decimal floating point number is a representation of the ideal form s * (10 ** e), where s is significand and e is exponent. This function returns that exponent value. The behavior is undefined if value is NaN or value is infinity.
exponent field of value
| Name | Description |
|---|---|
| value | decimal value whose exponent is returned |