Regular Expressions: Positive Lookahead & Lookbehind (Regex Tutorial with Examples)

Описание: Regular Expressions: Positive Lookahead & Lookbehind Regex Tutorial with Examples

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1. Learn how positive lookahead checks what follows without consuming text.
2. See positive lookbehind match only when something specific precedes.
3. Practical patterns for passwords, dates, and word boundaries.
4. Clear step-by-step demos in Python’s re and language-agnostic tips.

Includes common pitfalls, performance notes, and cheat-sheet examples.

Tags (comma separated):
regex, regular expressions, positive lookahead, lookahead, lookbehind, positive lookbehind, python regex, javascript regex, re module, regex tutorial, regex examples, string matching, pattern matching, anchors and boundaries, regex cheat sheet, data validation, text processing, coding interview, developer tips, learn regex

Hashtags:
#Regex #RegularExpressions #Lookahead #Lookbehind #Python #JavaScript #CodingTutorial #Developers #LearnToCode

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