Concepts

• Character classes
  • Character classes: \w, \W, \d, \D, \s and \S
• Quantifiers
  • The quantifiers *, + and ?
  • The quantifiers {n}
  • Greedy quantifiers
• Assertions
  • Anchors
  • Anchors - Multiline
  • Word boundaries
• Regexp Modifiers / Options
  • dotAll / s option
  • multiline / m option
  • ignoreCase / i option
• The Sticky flag - /y
  • Understanding regexp sticky flag - /y
• Backreferences
  • \N - By number
  • \k<NAME> - By Name
• Lookahead, Lookbehind, Lookaround
  • Understanding Lookaround
  • Nested and In-succession Lookarounds

Recipes

• Collection - I
  • Matching IP Address
  • Match Time string in various formats
• Collection - II
  • Match quoted words
  • Match words with doubled letters
• Date Validations
  • Matching the day and the month values
  • Date Regexp

Exercises

• Exercise - Lookahead, Lookbehind, Lookaround
  • Question - Match the coefficients
  • Question - Match based on the presence of words.
  • Question - Find and match the positive and negative numbers?
• Exercise - I
  • Question - Odd and even numbers in a single list / column of numbers
  • Question - Odd and even numbers in rows of numbers
  • Question - Consecutive duplicate words in a sentence.