What are some common regex errors and how can I fix them?

What are some common regex errors I should be aware of?

Some common regex errors include forgetting to escape special characters, using incorrect quantifiers, and mismatched parentheses.

Can you give me an example of a regex error and how to fix it?

Sure! A common error is using * instead of +. For example, a* matches zero or more 'a's, while a+ matches one or more. If you want at least one 'a', use a+.

What happens if I forget to escape a special character?

If you forget to escape a special character like . or *, it will be treated as a literal character instead of a regex operator, leading to unexpected matches.

How can I test my regex patterns to avoid these errors?

You can use online regex testers like regex101.com or regexr.com, which provide real-time feedback and explanations for your patterns.