Regular Expressions [Part 2] - Metacharacter Symbols

This video tutorial covers the basics of regular expressions, including the use of literal characters, metacharacter symbols, wildcards, and optional characters. It also explains how to create a custom function to test regular expressions and handle case sensitivity. The tutorial further explores the use of the dot (.) and asterisk (*) as wildcards, the question mark (?) for optional characters, and how to escape characters to use them as literals. The video concludes with a brief introduction to character sets, quantifiers, and grouping, which will be covered in the next lecture.

Explain the significance of the 'exec' method in the context of regular expressions.

What is the role of flags in regular expressions, and how do they affect matching?

What are metacharacter symbols and how are they used in regular expressions?

How can you use escape characters in regular expressions?