Js error checking process Induction

Induction is for better understanding. Inspired by jQuery "Discussion" (http://docs.jquery.com/Discussion) page, usually colleagues have problems ask me to help solve the problem, often are very small problems, in this case they are not lack of knowledge to solve the problem, instead, you need to find a solution to the problem. People are always helpful. A good error checking process can filter out many simple small problems ^.

1. Make sure that your page element tag is valid

2. Use a debugging tool (for example, Firebug) to check for exceptions.

3. Whether the Referenced File or dependent module or method is valid

4. Minimize the number of test cases (keep deleted until the problem disappears)

5. The problem description should be as concise as possible to keep necessary details