Induction is for better understanding. Inspired by the jQuery "Discussion" (/Discussion) page, colleagues usually ask me to help solve problems when they have problems, which is often very small. In this case, they do not lack the knowledge to solve problems, but need to find solutions to problems. People are always helpful. Having a good process for checking errors can filter out many simple small problems^^.
1. Make sure your page element tags are valid
2. Use debugging tools (for example: Firebug) to see if there are any exceptions
3. Whether a reference file or dependency module or method is effective
4. Reduce to the minimum test cases (keep deleted stuff until the problem disappears, etc.)
5. The problem description should be as concise as possible and keep the necessary details
1. Make sure your page element tags are valid
2. Use debugging tools (for example: Firebug) to see if there are any exceptions
3. Whether a reference file or dependency module or method is effective
4. Reduce to the minimum test cases (keep deleted stuff until the problem disappears, etc.)
5. The problem description should be as concise as possible and keep the necessary details