digitLength static method
返回小数的位数
number
数据
Implementation
static num digitLength(dynamic number) {
final eSplit = parseNum(number).toString().toLowerCase().split('e');
final digit = eSplit[0].split('.');
final len = (digit.length == 2 ? digit[1].length : 0) - (eSplit.length == 2 ? int.parse(eSplit[1]) : 0);
return len > 0 ? len : 0;
}