Add leading zeroes to number in Dart -

i want add leading zeroes string. example, total length may 8 characters. example:

123 should 00000123 1243 should 00001234 123456 should 00123456 12345678 should 12345678 

what easy way in dart?

dartpad

void main() {  print(123.tostring().padleft(10, '0')); }