valueOf method
Return a string representing the value of this Big. Return exponential notation if this Big has a positive exponent equal to or greater than Big.pe, or a negative exponent equal to or less than Big.ne. Include the sign for negative zero.
Implementation
String valueOf() {
var x = this;
if (Big.strict == true) {
throw BigError(
code: BigErrorCode.invalidNumber,
);
}
return stringify(x, x.e <= ne || x.e >= pe, true);
}