parse static method
Implementation
static num parse(String value) {
var e = value.indexOf('E');
e != -1 ? e : e = value.indexOf('e');
if (e == -1) return num.parse(value);
var plainNumber = num.parse(value.substring(0, e));
var exp = value.substring(e + 1);
return plainNumber * math.pow(10, num.parse(exp));
}