How to compare two version number strings in golang

Question

I have two strings (they are actually version numbers and they could be any version numbers)

a := \"1.05.00.0156\"  
b := \"1.0.221.9289\"

Answer 1

Convert "1.05.00.0156" to "0001"+"0005"+"0000"+"0156", then to int64.

Convert "1.0.221.9289" to "0001"+"0000"+"0221"+"9289", then to int64.

Compare the two int64 values.

Try it on the Go playground