Regular Expressions in JavaScript: From Basics to Real-World Validation

Short summary

Learn JavaScript regular expressions through progressive examples, from character classes and quantifiers to real-world email validation and password strength checking. The tutorial covers core syntax, practical methods like test() and match(), and real-world applications including URL parsing, phone number formatting, and data scrubbing. Practice with RegEx101 before implementing patterns in production.

• •Master character classes (\d, \w, \s) and quantifiers (+, *, {n,m}) through concrete examples
• •Build and test email validation regex with anchors and escaping, from local part through TLD
• •Apply regex patterns to password validation, URL parsing, and data formatting in real projects

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