Computer Science, asked by SpideyySense, 1 day ago

9. What are regular expressions ? How are they useful ?​

Answers

Answered by vaigarenjit6b
19

Explanation:

Regular expressions are useful in search and replace operations. The typical use case is to look for a sub-string that matches a pattern and replace it with something else. Most APIs using regular expressions allow you to reference capture groups from the search pattern in the replacement string.

Answered by sanjudnath
11

Answer:

Regular expressions are useful in search and replace operations. The typical use case is to look for a sub-string that matches a pattern and replace it with something else. Most APIs using regular expressions allow you to reference capture groups from the search pattern in the replacement string.

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