Demystifying Regex: A Beginner's Guide to Regular Expressions

Regular Expressions (Regex) are a sequence of characters that define a search pattern. They are used for string searching and manipulation.

Basic Syntax

• .: Matches any character.
• *: Matches 0 or more of the preceding character.
• +: Matches 1 or more of the preceding character.
• [abc]: Matches any character in the brackets (a, b, or c).
• ^: Start of string.
• $: End of string.

Testing Your Patterns

Writing regex is trial and error. Use our Regex Tester to input a pattern and a test string. It will highlight matches in real-time, helping you debug your expression before putting it into production code.