Debug techniques

Bottom To Top

• You go through step by step from the first step where bug hasn’t happen to the step where bug appears
• Pros
  You can find out the reason why it happens for 100%
• Cons
  It takes time

Top To Bottom

• You find some hints (like ID, special content) at the page where bug appears and try to search in the code why those ID, special content are set like that
• Pros
  Sometimes it’s impossible to find out the solution
• Cons
  It’s quick