RegEx Tutorial - Introducing Regular Expressions
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A Regular Expression (RegEx or RegExp for short) is a sequence of characters that define a search pattern. This pattern can be used later by string searching algorithms for "find" or "find and replace" operations on strings. In this RegEx tutorial, we explain the theory of regular languages, and how they are defined by regular expressions.
Watch this video to learn:
- What is a Regular Expression
- How the JavaScript RegExp object works
- How RegEx's can be overwhelmed by a ReDoS attack
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